skribbl.io

skribbl.io is SSL secured

Free website and domain report on skribbl.io

Last Updated: 23rd October, 2023 Update Now
Overview

Snoop Summary for skribbl.io

This is a free and comprehensive report about skribbl.io. Skribbl.io is hosted in France on a server with an IP address of 135.125.189.105, where the local currency is EUR and French is the local language. Our records indicate that skribbl.io is privately registered by Privacy service provided by Withheld for Privacy ehf. Skribbl.io is expected to earn an estimated $509 USD per day from advertising revenue. The sale of skribbl.io would possibly be worth $371,415 USD. This figure is based on the daily revenue potential of the website over a 24 month period. Skribbl.io is insanely popular with an estimated 120,309 daily unique visitors. This report was last updated 23rd October, 2023.

About skribbl.io

Site Preview: skribbl.io skribbl.io
Title: skribbl - Free Multiplayer Drawing & Guessing Game
Description: skribbl io is a free multiplayer drawing and guessing game. Draw and guess words with your friends and people all around the world! Score the most points and be the winner!
Keywords and Tags: browser, draw, draw and guess, drawing games, drawmything, free, friends, fun, games, guess, io, paint, points, score, scribbl, scribbl io, scribble, scribble io, scribblio, scriblio, skribbl, skribbl io, skribbl io game, skribbl io unblocked, skribbl.io, skribble, skribble io, skribblio, skriblio, winner
Related Terms: building drawing, butterfly drawing, drawing pictures, free kalyan guessing, massive multiplayer, mechanical drawing symbols, pencil drawing, pixel drawing, skribbl io hack, snowflake drawing
Fav Icon:
Age: Over 7 years old
Domain Created: 31st January, 2017
Domain Updated: 27th December, 2019
Domain Expires: 31st January, 2025
Review

Snoop Score

3/5 (Great!)

Valuation

$371,415 USD
Note: All valuation figures are estimates.

Popularity

Very High
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 10,442
Alexa Reach:
SEMrush Rank (US): 11,666
SEMrush Authority Score: 51
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Organic Paid
Keywords: 1,073 0
Traffic: 231,880 0
Cost: $430,334 USD $0 USD
Traffic

Visitors

Daily Visitors: 120,309
Monthly Visitors: 3,661,827
Yearly Visitors: 43,912,785
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $509 USD
Monthly Revenue: $15,485 USD
Yearly Revenue: $185,702 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Backlinks: 40,608
Referring Domains: 2,301
Referring IPs: 2,334
Skribbl.io has 40,608 backlinks according to SEMrush. 65% of these backlinks are "dofollow" (follow) links which allow the flow of link equity to pass through, which may improve skribbl.io's search engine rankings. Other links are treated as 'hints' by search engines and may also pass link equity, depending on what search engines decide in each case.
98% of skribbl.io's backlinks are text and image links, which are ideal for SEO. Other backlink types may be unrecognized or ignored by search engines.

Top New Follow Links

1
Source: https://student.vub.be/studeren-in-tijden-van-corona
Target: https://skribbl.io/

2
Source: https://student.vub.be/studeren-in-tijden-van-corona
Target: https://skribbl.io/

3
Source: https://www.don.fr/coronavirus-feter-son-anniversaire-en-confinement/
Target: https://skribbl.io/

4
Source: http://www.laplayade.fr/
Target: https://skribbl.io/

5
Source: https://tf2center.com/lobbies
Target: https://skribbl.io/?4sdrCQr31prQ

Top Ranking Keywords (US)

1
Keyword: skribbl io
Ranked Page: https://skribbl.io/

2
Keyword: skribble io
Ranked Page: https://skribbl.io/

3
Keyword: scribble
Ranked Page: https://skribbl.io/

4
Keyword: skribblio
Ranked Page: https://skribbl.io/

5
Keyword: scribble io
Ranked Page: https://skribbl.io/

Domain Analysis

Value Length
Domain: skribbl.io 10
Domain Name: skribbl 7
Extension (TLD): io 2
Expiry Check:

Page Speed Analysis

Average Load Time: 1.28 seconds
Load Time Comparison: Faster than 61% of sites

PageSpeed Insights

Avg. (All Categories) 79
Performance 77
Accessibility 74
Best Practices 75
SEO 90
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://skribbl.io/
Updated: 17th January, 2023

1.35 seconds
First Contentful Paint (FCP)
85%
10%
5%

0.00 seconds
First Input Delay (FID)
98%
2%
0%

Simulate loading on desktop
77

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for skribbl.io. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Time to Interactive — 1.5 s
The time taken for the page to become fully interactive.
Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.066
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

Max Potential First Input Delay — 50 ms
Users could experience a delay when interacting with the page.
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https://pagead2.googlesyndication.com/pcs/activeview?xai=AKAOjss-aCqRpU7gaimOOLjIiap7h35QXMmeGYaME_dCewFhag1fp4gc2vigeCdVsxMvuW6OLpfwg_evBy4_YCtiBIi5HHAK4h1CwU9g72t0jK09JdRyOu8BZnYtVhbLekCpPq0uix8&sai=AMfl-YQTTArIdC-5JUQTjZSF2UOc0EnhcNSTMRJUSqt3cdCQjRzVESyA0yCMOVdmr91MYUde4g83rqe4YJDOXxY&sig=Cg0ArKJSzOGvklImXR5sEAE&cid=CAQSGwDq26N9_K3IyIDXml6fdhnkKowKc63AJQBDbBgBIBM&id=lidar2&mcvt=1033&p=0,0,280,336&mtos=1033,1033,1033,1033,1033&tos=1033,0,0,0,0&v=20230111&bin=7&avms=nio&bs=0,0&mc=1&if=1&vu=1&app=0&itpl=22&adk=1635301437&rs=2&la=0&cr=0&uach=WyJtYWNPUyIsIjEwLjE1LjciLCJ4ODYiLCIiLCI5OC4wLjQ2OTUuMCIsW10sZmFsc2UsbnVsbCwiIixbXSxmYWxzZV0%3D&vs=4&r=v&rst=1673965796507&rpt=532&met=mue&wmsd=0&pbe=0&spb=0
h2
3497.0980000217
3510.7990000397
695
42
200
image/gif
Fetch
https://pagead2.googlesyndication.com/getconfig/sodar?sv=200&tid=gda&tv=r20230111&st=env
h2
3889.3730000127
3906.278999988
11481
14346
200
application/json
XHR
https://skribbl.io/audio/roundStart.ogg
http/1.1
3920.2460000524
4454.945000005
20665
20361
200
audio/ogg
XHR
https://skribbl.io/audio/roundEndSuccess.ogg
http/1.1
3920.4540000064
4477.4370000232
28257
27953
200
audio/ogg
XHR
https://skribbl.io/audio/roundEndFailure.ogg
http/1.1
3920.8110000473
4471.0239999695
24626
24322
200
audio/ogg
XHR
https://skribbl.io/audio/join.ogg
http/1.1
3921.0860000458
4351.8710000208
10696
10392
200
audio/ogg
XHR
https://skribbl.io/audio/leave.ogg
http/1.1
3921.28400004
4357.9169999575
10235
9932
200
audio/ogg
XHR
https://skribbl.io/audio/playerGuessed.ogg
http/1.1
3922.6059999783
4368.2020000415
12224
11920
200
audio/ogg
XHR
https://skribbl.io/audio/tick.ogg
http/1.1
3922.7390000597
4367.751999991
12925
12621
200
audio/ogg
XHR
https://tpc.googlesyndication.com/sodar/sodar2.js
h2
3925.4380000057
3939.3279999495
7166
17314
200
text/javascript
Script
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
h2
3952.0479999483
3961.1520000035
5856
12817
200
text/html
Document
https://www.google.com/recaptcha/api2/aframe
h2
3957.1409999626
3979.0339999599
1426
783
200
text/html
Document
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
h2
3976.4339999529
3984.1020000167
17017
37051
200
text/javascript
Script
https://pagead2.googlesyndication.com/pagead/sodar?id=sodar2&v=225&li=gda_r20230111&jk=2741502951645297&rc=
h2
3993.4030000586
4003.973999992
516
0
204
text/html
Image
https://pagead2.googlesyndication.com/pagead/sodar?id=sodar2&v=225&t=2&li=gda_r20230111&jk=2741502951645297&bg=!UVKlUhbNAAYDMoyoIzI7ACkAdvg8WoMiNpuuQFVPfl8MmS4c7eiJtMNE0O5QtmiDNCLMyCwj3VhPLgIAAADhUgAAAAhoAQcKAIRErU05EmyWYIF_ZWZS2e4SJ7GLTGOcfuZ61FWV5fVq2XQmvUkMLaFQNO8sBdqPi1c6NUylii0WBmB_2SPK8wzahxrYvwBVYZWkimz2Y0z2PPYqRD2dAJjgfqH7K-7QO2R747WkCufoAvuP-agTUT7HiUg86t4HBlmZ2ji7AAqUw7JRFomZAuTbAtiB0s2At9j-P3wLLBiG8kxBFgZg6aNQlv92e5w__quONkPTewF4wCrF98yehet7zHKuuG9mzvgmztklzMwIkVxKZCAptndYr6iWu5qidlpjfumSBdGh5a3pSTNu8i0A0Th6djvo4vaiaxg3yCQ0BU3x0bos3n6p0TqMo_Pf3bjzX8glJX7V3ThqgPOQ7jqg0jN634SJzLMkUuQGY2kdz2XP72tiHVeVuvkxiquIR9N4d0crWPnC8AWGypIZoU3KUNEVg5gtIQlNea2l3gf6Kl7dNHPtqZQOV2Ri7mKMy--zbmx3Jf4jzgBFkUsqoR-l8ko5EzWbv0yLssIzV5_XQQVP4SVzzDBfvxldRz9mFdO4DDVrnI1Ae3cGWo13C4vgI6MTPsA57Oap6T3AktIMrKmIv_ZsWNZQh4UkKcMsWKY2EEYaEo_bcQfVWkVhWi_PIlKaGYk9Eg9x6A63gjmRQZZ4Gumz94JQksXO0mUxqyVmyx9iGiQtGESda1wUtjhZNPUUg5JQ-o_19rlQgwzr3JNzQKR2nmbaNW6rZdFJHW-EjmVtvsa_o4WIr27VH9VflMIFIkB5J8pS4tjEBAFLQB9dMBIhBk5AWmEC0ajlwd_ura948vvRuIBaX2WZgcBhP1r89NApL8SpIioax6uE5br2XiyDpybOdDkr-W6unRMw_taE-PE6EsFXkDUmbPEMxcwYux8D6Xg9aMugrcfwLqVELm-p4Eopir1YiUowsdcgk86QruJl92p25ktnCvk7Ks5s2_dEK6zZL3M2KUewYiZwZB2VNTZ7nTWr_wHLDyxb5pBLArboVn1AjoyWQgrKbfxVZ2GYLJ0hQQ-xAulDtTIbv5AKQ0nym63CGCY-IbC9Fd_yXGdTZYmCOl3QEkQ8mUbWcW0CZ21Xc-jg0CNhKlcaxtsCcgj0_J-zk7P-DAqmhQIRHB0XPco6eSnipW-YmYYgbxZKcm_VgH9G647xRaZ4zQ
h2
4750.6409999914
4768.7089999672
516
0
204
text/html
Image
https://skribbl.io/ads.txt
6187.1800000081
6692.435999983
0
0
-1
XHR
https://stats.adinplay.com/collect
6692.0270000119
6846.2099999888
0
0
-1
XHR
https://stats.adinplay.com/collect
6693.0090000387
0
0
-1
Other
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1074.145
9.748
1154.903
32.693
1228.831
17.64
1251.815
32.149
1290.334
25.766
1317.202
17.817
1346.999
7.31
1787.475
13.16
1803.909
7.314
1814.397
18.926
1834.605
9.005
1874.084
49.464
1925.046
7.449
2299.831
8.591
2309.237
8.292
2319.637
7.756
2333.979
6.324
2348.836
46.23
2395.705
5.492
2406.709
5.534
2445.119
5.939
2451.175
7.537
3319.757
9.651
3329.423
5.907
3335.435
23.308
3377.16
18.055
3395.258
5.793
3401.09
9.961
3412.624
15.282
3428.097
16.469
3444.761
16.197
3461.083
16.545
3477.948
16.371
3499.312
11.691
3511.144
16.426
3529.638
14.75
3544.722
16.157
3561.063
16.602
3577.843
16.33
3594.307
16.656
3611.167
16.379
3627.775
16.737
3888.025
34.685
3943.709
9.423
3965.48
6.091
3982.926
6.212
3993.743
18.307
4014.084
9.901
4025.024
16.145
4041.542
11.509
4053.199
17.982
4071.346
7.987
4088.032
22.283
4110.43
15.282
4135.95
21.973
4162.999
22.296
4185.441
11.953
4197.548
13.077
4210.76
11.347
4736.014
10.262
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Eliminate render-blocking resources — Potential savings of 120 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Skribbl.io should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://skribbl.io/css/style.css
62409
230
https://fonts.googleapis.com/css2?family=Inconsolata&display=swap
1269
230
Properly size images
Images can slow down the page's load time. Skribbl.io should consider serving more appropriate-sized images.
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Skribbl.io should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Skribbl.io should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Skribbl.io should consider minifying JS files.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Skribbl.io should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://skribbl.io/
190
https://skribbl.io/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Skribbl.io should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://skribbl.io/js/socket.io.js
168
https://c.amazon-adsystem.com/aax2/apstag.js
110
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
59
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://skribbl.io/img/tutorial/step1.gif
0
Avoids enormous network payloads — Total size was 1,120 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
132928
https://imasdk.googleapis.com/js/sdkloader/ima3.js
126660
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212050101/show_ads_impl_fy2021.js
120712
https://skribbl.io/css/style.css
62409
https://skribbl.io/js/game.js
58422
https://www.googletagservices.com/activeview/js/current/rx_lidar.js?cache=r20110914
50229
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
50122
https://c.amazon-adsystem.com/aax2/apstag.js
46018
https://skribbl.io/js/socket.io.js
43955
https://fonts.gstatic.com/s/opensans/v34/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2
40299
Avoids an excessive DOM size — 661 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
661
Maximum DOM Depth
12
Maximum Child Elements
28
Avoid chaining critical requests — 6 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Skribbl.io should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 6 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
lteu
Measure
1287.026
0.175
ltpq
Measure
1287.298
0.033
loadStarteventUtils
Mark
1287.063
loadEndeventUtils
Mark
1287.213
loadStartpixelQueue
Mark
1287.303
loadEndpixelQueue
Mark
1287.336
JavaScript execution time — 0.4 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://skribbl.io/
334.952
8.267
1.375
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
202.261
191.921
2.117
https://skribbl.io/js/game.js
131.391
98.780000000002
0.778
Unattributable
117.277
3.55
0
https://www.googletagservices.com/activeview/js/current/rx_lidar.js?cache=r20110914
61.809
57.531
2.251
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212050101/show_ads_impl_fy2021.js
56.807
48.613
5.213
Minimizes main-thread work — 1.2 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
597.84
Rendering
284.129
Other
201.382
Style & Layout
54.634
Script Parsing & Compilation
43.671
Parse HTML & CSS
18.396
Garbage Collection
17.198
Keep request counts low and transfer sizes small — 81 requests • 1,120 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
81
1146465
Script
20
713587
Other
21
140997
Image
25
89002
Font
2
77075
Stylesheet
5
67797
Document
8
58007
Media
0
0
Third-party
45
751916
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
318820
0
128654
0
82463
0
49705
0
21275
0
14952
0
1641
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.033946172297435
0.026572346221084
0.0044057403220891
0.0031523280694068
0.0031523280694068
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
Avoid non-composited animations — 5 animated elements found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of skribbl.io on mobile screens.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 1.5 s
The time taken for the first image or text on the page to be rendered.

Audits

First Meaningful Paint — 1.5 s
The time taken for the primary content of the page to be rendered.

Other

Reduce unused CSS — Potential savings of 52 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Skribbl.io should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://skribbl.io/css/style.css
62409
53401
Reduce unused JavaScript — Potential savings of 394 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
132928
107732
https://imasdk.googleapis.com/js/sdkloader/ima3.js
126660
91946
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212050101/show_ads_impl_fy2021.js
120712
77865
https://skribbl.io/js/socket.io.js
43955
35575
https://skribbl.io/js/game.js
58422
34376
https://c.amazon-adsystem.com/aax2/apstag.js
46018
32285
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
50122
23951
Enable text compression — Potential savings of 131 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://skribbl.io/css/style.css
62091
50662
https://skribbl.io/js/game.js
58090
37183
https://skribbl.io/js/socket.io.js
43623
30591
https://skribbl.io/
21702
16142

Metrics

Speed Index — 2.4 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 2.4 s
The timing of the largest text or image that is painted.

Other

Reduce initial server response time — Root document took 810 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://skribbl.io/
813.576
Serve static assets with an efficient cache policy — 9 resources found
Skribbl.io can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
1800000
132928
https://api.adinplay.com/libs/aiptag/assets/adsbygoogle.js
1800000
768
https://c.amazon-adsystem.com/aax2/apstag.js
3600000
46018
https://www.google-analytics.com/analytics.js
7200000
20664
https://tpc.googlesyndication.com/pagead/js/r20230111/r20110914/abg_lite_fy2021.js
1209600000
9680
https://tpc.googlesyndication.com/pagead/js/r20230111/r20110914/client/qs_click_protection_fy2021.js
1209600000
8330
https://tpc.googlesyndication.com/pagead/js/r20230111/r20110914/client/window_focus_fy2021.js
1209600000
2028
https://tpc.googlesyndication.com/pagead/js/r20230111/r20110914/client/load_preloaded_resource_fy2021.js
1209600000
1527
https://www.gstatic.com/mysidia/3dc49c9b9e6a6b78323daad710439309.js?tag=mysidia_one_click_handler_one_afma_2019
7776000000
14952
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://fonts.gstatic.com/s/opensans/v34/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2
6.8100000498816
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://skribbl.io/img/tutorial/step2.gif
https://skribbl.io/img/logo.gif
Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
74

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of skribbl.io. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Skribbl.io may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
Failing Elements

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Names and labels

`<frame>` or `<iframe>` elements do not have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
75

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that skribbl.io should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Socket.IO
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://skribbl.io/js/socket.io.js
https://skribbl.io/js/socket.io.min.js.map
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://skribbl.io/
Allowed

Audits

Page lacks the HTML doctype, thus triggering quirks-mode
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
90

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for skribbl.io. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of skribbl.io on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
Avg. (All Categories) 58
Performance 30
Accessibility 74
Best Practices 75
SEO 83
PWA 30
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://skribbl.io/
Updated: 17th January, 2023

1.66 seconds
First Contentful Paint (FCP)
79%
14%
7%

0.03 seconds
First Input Delay (FID)
92%
7%
1%

Simulate loading on mobile
30

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for skribbl.io. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.04
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

Properly size images
Images can slow down the page's load time. Skribbl.io should consider serving more appropriate-sized images.
Defer offscreen images — Potential savings of 18 KiB
Time to Interactive can be slowed down by resources on the page. Skribbl.io should consider lazy-loading offscreen and hidden images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://skribbl.io/img/tutorial/step1.gif
5267
5267
https://skribbl.io/img/tutorial/step3.gif
4782
4782
https://skribbl.io/img/tutorial/step5.gif
4340
4340
https://skribbl.io/img/tutorial/step4.gif
4334
4334
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Skribbl.io should consider minifying CSS files.
Minify JavaScript
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Skribbl.io should consider minifying JS files.
Reduce unused CSS — Potential savings of 50 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Skribbl.io should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://skribbl.io/css/style.css
62409
51546
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Skribbl.io should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://skribbl.io/
630
https://skribbl.io/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Skribbl.io should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://skribbl.io/js/socket.io.js
168
https://c.amazon-adsystem.com/aax2/apstag.js
110
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
59
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://skribbl.io/img/logo.gif
0
Avoids enormous network payloads — Total size was 982 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
132926
https://imasdk.googleapis.com/js/sdkloader/ima3.js
126660
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212050101/show_ads_impl_fy2021.js
120717
https://skribbl.io/css/style.css
62409
https://skribbl.io/js/game.js
58422
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
50123
https://c.amazon-adsystem.com/aax2/apstag.js
46018
https://skribbl.io/js/socket.io.js
43955
https://fonts.gstatic.com/s/nunito/v25/XRXV3I6Li01BKofINeaBTMnFcQ.woff2
36775
https://skribbl.io/audio/roundEndSuccess.ogg
28257
Avoids an excessive DOM size — 661 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
661
Maximum DOM Depth
12
Maximum Child Elements
28
Avoid chaining critical requests — 6 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Skribbl.io should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures — 6 user timings
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
Name Type Start Time (Ms) Duration (Ms)
lteu
Measure
1265.476
0.224
ltpq
Measure
1265.796
0.036
loadStarteventUtils
Mark
1265.518
loadEndeventUtils
Mark
1265.706
loadStartpixelQueue
Mark
1265.801
loadEndpixelQueue
Mark
1265.837
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 68 requests • 982 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
68
1006016
Script
13
626093
Other
18
138727
Image
26
102095
Stylesheet
4
66299
Font
1
36775
Document
6
36027
Media
0
0
Third-party
31
598374
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
Avoid large layout shifts — 1 element found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.040426025390625
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 20 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://imasdk.googleapis.com/js/sdkloader/ima3.js
9365
278
https://imasdk.googleapis.com/js/sdkloader/ima3.js
8118
212
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
4136
202
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
7118
189
https://skribbl.io/js/game.js
4740
167
https://skribbl.io/
1260
146
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212050101/show_ads_impl_fy2021.js
9183
132
https://www.google-analytics.com/analytics.js
6386
126
https://tpc.googlesyndication.com/sodar/sodar2.js
10573
121
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
11107
106
Unattributable
681
99
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
11745
86
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
11213
85
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
11298
83
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
11561
82
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
7307
76
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
11431
76
https://skribbl.io/
1477
73
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
11922
71
https://skribbl.io/
1658
70
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of skribbl.io on mobile screens.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Audits

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://skribbl.io/
http/1.1
0
224.7740002349
230
0
301
text/plain
https://skribbl.io/
http/1.1
227.19400003552
972.54900028929
21935
21702
200
text/html
Document
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
h2
1014.2089999281
1067.8460001945
132926
451893
200
application/javascript
Script
https://skribbl.io/css/style.css
http/1.1
1014.4569999538
1879.1610002518
62409
62091
200
text/css
Stylesheet
https://fonts.googleapis.com/css2?family=Inconsolata&display=swap
h2
1014.6950003691
1028.7320003845
1268
1293
200
text/css
Stylesheet
https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,400;0,600;0,700;0,800;1,400&display=swap
h2
1014.9060003459
1029.263000004
1476
8510
200
text/css
Stylesheet
https://fonts.googleapis.com/icon?family=Material+Icons
h2
1015.1380002499
1027.3899999447
1146
575
200
text/css
Stylesheet
https://skribbl.io/img/logo.gif
http/1.1
1027.8010000475
1796.5299999341
8314
8011
200
image/gif
Image
https://skribbl.io/img/about.gif
http/1.1
1028.0120000243
1784.4650000334
1381
1079
200
image/gif
Image
https://skribbl.io/img/news.gif
http/1.1
1028.1320000067
1754.3339999393
1462
1160
200
image/gif
Image
https://skribbl.io/img/how.gif
http/1.1
1028.2310000621
1761.6750001907
590
289
200
image/gif
Image
https://skribbl.io/img/tutorial/step1.gif
http/1.1
1028.3980001695
1769.817000255
5570
5267
200
image/gif
Image
https://skribbl.io/img/tutorial/step2.gif
http/1.1
1028.507000301
1774.2159999907
3732
3430
200
image/gif
Image
https://skribbl.io/img/tutorial/step3.gif
http/1.1
1028.5770003684
1800.1610003412
5085
4782
200
image/gif
Image
https://skribbl.io/img/tutorial/step4.gif
http/1.1
1028.6300000735
1784.8400003277
4637
4334
200
image/gif
Image
https://skribbl.io/img/tutorial/step5.gif
http/1.1
1028.684000019
1786.2780001014
4643
4340
200
image/gif
Image
https://skribbl.io/img/setting_2.gif
http/1.1
1029.1309999302
1758.4609999321
663
362
200
image/gif
Image
https://skribbl.io/img/setting_3.gif
http/1.1
1029.1880001314
1804.0640000254
612
311
200
image/gif
Image
https://skribbl.io/img/setting_1.gif
http/1.1
1030.8320000768
1439.6339999512
615
314
200
image/gif
Image
https://skribbl.io/img/setting_0.gif
http/1.1
1030.9520000592
1779.9329999834
676
375
200
image/gif
Image
https://skribbl.io/img/setting_6.gif
http/1.1
1031.0670002364
1791.5420001373
579
278
200
image/gif
Image
https://skribbl.io/img/setting_4.gif
http/1.1
1031.1850002035
1785.9380003065
595
294
200
image/gif
Image
https://skribbl.io/img/setting_5.gif
http/1.1
1031.2720001675
1791.2790002301
596
295
200
image/gif
Image
https://skribbl.io/js/socket.io.js
http/1.1
1027.0190001465
1860.643000342
43955
43623
200
application/javascript
Script
https://skribbl.io/js/game.js
http/1.1
1027.2340001538
1912.5789999962
58422
58090
200
application/javascript
Script
https://cdn.jsdelivr.net/gh/prebid/currency-file@1/latest.json?date=20230117
h2
1132.3000001721
1142.8180001676
1641
1591
200
application/json
XHR
https://country.adinplay.workers.dev/
h2
1132.4570002034
1182.3869999498
718
2
200
text/plain
XHR
https://c.amazon-adsystem.com/aax2/apstag.js
h2
1136.4970002323
1174.5930002071
46018
183200
200
application/javascript
Script
https://imasdk.googleapis.com/js/sdkloader/ima3.js
h2
1137.0560000651
1158.2130002789
126660
378080
200
text/javascript
Script
https://api.adinplay.com/libs/aiptag/assets/adsbygoogle.js
h2
1137.3940003105
1154.4930003583
774
16
200
application/javascript
Script
https://c.amazon-adsystem.com/cdn/prod/config?src=600&u=https%3A%2F%2Fskribbl.io&pubid=53b902f9-cf9c-4605-aec3-2c8ce65042b8
h2
1198.4590003267
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Document
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XHR
https://skribbl.io/audio/roundEndSuccess.ogg
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audio/ogg
XHR
https://skribbl.io/audio/roundEndFailure.ogg
http/1.1
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audio/ogg
XHR
https://skribbl.io/audio/join.ogg
http/1.1
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audio/ogg
XHR
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audio/ogg
XHR
https://skribbl.io/audio/playerGuessed.ogg
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audio/ogg
XHR
https://skribbl.io/audio/tick.ogg
http/1.1
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audio/ogg
XHR
https://pagead2.googlesyndication.com/getconfig/sodar?sv=200&tid=gda&tv=r20230111&st=env
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https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
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https://skribbl.io/ads.txt
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XHR
https://stats.adinplay.com/collect
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Other
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
985.978
36.434
1024.601
14.047
1091.729
50.481
1185.606
17.082
1202.708
5.06
1208.844
53.028
1268.725
63.179
1332.833
47.141
1395.368
7.784
1887.416
38.056
1925.487
7.618
1933.815
7.265
1942.654
36.471
1982.642
12.662
1999.146
29.76
2029.051
7.111
2042.924
66.121
2111.014
12.377
2148.058
6.85
2240.623
6.32
2324.865
16.966
2470.847
69.575
2586.223
9.106
2610.585
8.569
2626.28
8.432
2651.148
25.212
2678.103
11.705
2691.467
13.003
2708.117
11.539
2721.302
10.236
2731.568
24.706
2759.264
12.096
2774.799
26.606
2801.532
21.328
2825.351
20.76
2853.315
18.975
2872.491
5.368
2877.973
13.498
2891.555
20.436
2913.281
12.195
2925.64
13.29
2941.657
21.415
2963.218
11.502
2974.937
11.325
3509.534
17.675
3530.002
30.221
4127.365
10.03
4859.595
41.69
5558.034
17.487
5575.566
16.252
5591.986
16.533
5608.562
16.505
5625.199
16.49
5641.83
16.638
5658.624
16.447
5675.105
16.849
5692.125
16.352
5708.516
16.527
5725.185
16.44
5741.794
16.632
5758.574
16.66
5775.277
16.576
5792.05
16.388
5808.474
16.663
5825.276
16.344
5841.753
16.649
5858.541
16.556
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Enable text compression — Potential savings of 131 KiB
Text-based resources should be served with compression, such as gzip, deflate or brotli.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://skribbl.io/css/style.css
62091
50662
https://skribbl.io/js/game.js
58090
37183
https://skribbl.io/js/socket.io.js
43623
30591
https://skribbl.io/
21702
16142

Metrics

First Contentful Paint — 6.2 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 11.1 s
The time taken for the page to become fully interactive.
Speed Index — 8.1 s
The time taken for the page contents to be visibly populated.
Total Blocking Time — 890 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Largest Contentful Paint — 7.4 s
The timing of the largest text or image that is painted.

Audits

Max Potential First Input Delay — 280 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 6.2 s
The time taken for the primary content of the page to be rendered.

Other

Eliminate render-blocking resources — Potential savings of 900 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Skribbl.io should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://skribbl.io/css/style.css
62409
1080
https://fonts.googleapis.com/css2?family=Inconsolata&display=swap
1268
780
https://fonts.googleapis.com/css2?family=Nunito:ital,wght@0,400;0,600;0,700;0,800;1,400&display=swap
1476
150
Reduce unused JavaScript — Potential savings of 394 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
132926
107731
https://imasdk.googleapis.com/js/sdkloader/ima3.js
126660
91946
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212050101/show_ads_impl_fy2021.js
120717
78311
https://skribbl.io/js/socket.io.js
43955
35575
https://skribbl.io/js/game.js
58422
34376
https://c.amazon-adsystem.com/aax2/apstag.js
46018
32285
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
50123
23717
Reduce initial server response time — Root document took 750 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://skribbl.io/
745.461
Serve static assets with an efficient cache policy — 4 resources found
Skribbl.io can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
1800000
132926
https://api.adinplay.com/libs/aiptag/assets/adsbygoogle.js
1800000
774
https://c.amazon-adsystem.com/aax2/apstag.js
3600000
46018
https://www.google-analytics.com/analytics.js
7200000
20664
Reduce JavaScript execution time — 3.5 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://skribbl.io/
1999.084
91.924
15.832
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
1182.968
1132.532
8.116
https://skribbl.io/js/game.js
1055.764
844.856
3.944
Unattributable
429.572
11.924
0
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212050101/show_ads_impl_fy2021.js
358.748
312.108
25.992
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
321.928
190.356
10.544
https://www.google-analytics.com/analytics.js
262.524
99.824
4.62
https://api.adinplay.com/libs/aiptag/pub/SKR/skribbl.io/tag.min.js
244.196
203.504
28.36
https://imasdk.googleapis.com/js/sdkloader/ima3.js
219.292
185.008
28.26
https://tpc.googlesyndication.com/sodar/sodar2.js
178.632
171.036
1.684
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
99.108
91.832
6.392
https://c.amazon-adsystem.com/aax2/apstag.js
81.496
62.648
13.336
Minimize main-thread work — 6.7 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
3456.044
Rendering
1390.512
Other
968.51199999999
Style & Layout
472.044
Script Parsing & Compilation
173.176
Parse HTML & CSS
108.356
Garbage Collection
86.068
Reduce the impact of third-party code — Third-party code blocked the main thread for 800 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
222585
595.24
128085
107.88
21275
95.764
49705
2.024
40665
0
1641
0
Does not use passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Source
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://skribbl.io/img/tutorial/step2.gif
https://skribbl.io/img/logo.gif
Registers an `unload` listener
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.
Source
First Contentful Paint (3G) — 11846 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.
74

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of skribbl.io. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Skribbl.io may provide assistance to deaf or hearing-impaired users with captions on videos.

ARIA

`[aria-*]` attributes do not match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
Failing Elements

Contrast

Background and foreground colors do not have a sufficient contrast ratio.
Many (if not most) users find low-contrast text difficult or impossible to read.
Failing Elements

Names and labels

`<frame>` or `<iframe>` elements do not have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
75

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that skribbl.io should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
Socket.IO
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
Page has valid source maps
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://skribbl.io/js/socket.io.js
https://skribbl.io/js/socket.io.min.js.map
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://skribbl.io/
Allowed

Audits

Page lacks the HTML doctype, thus triggering quirks-mode
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
DOMException: Failed to execute 'decodeAudioData' on 'BaseAudioContext': Unable to decode audio data
83

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for skribbl.io. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of skribbl.io on mobile screens.
Tap targets are sized appropriately — 100% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Mobile Friendly

Document doesn't use legible font sizes — 53.65% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
#home .news .content ul
35.01%
10.368px
#home .bottom .footer .notice
10.48%
10.24px
#home .news .head .date
0.86%
10.56px
53.65%
≥ 12px

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
30

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of skribbl.io. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of skribbl.io on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 135.125.189.105
Continent: Europe
Country: France
France Flag
Region:
City:
Longitude: 2.3387
Latitude: 48.8582
Currencies: EUR
Languages: French

Web Hosting Provider

Registration

Domain Registrant

Private Registration: Yes
Name: REDACTED FOR PRIVACY
Organization: Privacy service provided by Withheld for Privacy ehf
Country: IS
City: REDACTED FOR PRIVACY
State: Capital Region
Post Code: REDACTED FOR PRIVACY
Email:
Phone: REDACTED FOR PRIVACY
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
NAMECHEAP INC 104.16.99.56
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Unknown
WOT Rating:
WOT Trustworthiness: 67/100
WOT Child Safety: 10/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: skribbl.io
Issued By: R3
Valid From: 18th April, 2023
Valid To: 17th July, 2023
Subject: CN = skribbl.io
Hash: ef1b7e38
Issuer: CN = R3
O = Let's Encrypt
S = US
Version: 2
Serial Number: 0x03D64BDD0B518E434028BE6792D634D06266
Serial Number (Hex): 03D64BDD0B518E434028BE6792D634D06266
Valid From: 18th April, 2024
Valid To: 17th July, 2024
Signature Algorithm (Short Name): RSA-SHA256
Signature Algorithm (Long Name): sha256WithRSAEncryption
Authority Key Identifier: keyid:14:2E:B3:17:B7:58:56:CB:AE:50:09:40:E6:1F:AF:9D:8B:14:C2:C6
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
Certificate Policies: Policy: 2.23.140.1.2.1
Policy: 1.3.6.1.4.1.44947.1.1.1
CPS: http://cps.letsencrypt.org

Authority Information Access: OCSP - URI:http://r3.o.lencr.org
CA Issuers - URI:http://r3.i.lencr.org/

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 7A:32:8C:54:D8:B7:2D:B6:20:EA:38:E0:52:1E:E9:84:
16:70:32:13:85:4D:3B:D2:2B:C1:3A:57:A3:52:EB:52
Timestamp : Apr 18 13:27:49.757 2023 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:6B:29:3F:4F:5E:ED:C8:03:6E:27:A1:EA:
47:79:E4:69:B3:F9:7E:A8:0F:86:71:B2:B0:F6:79:C5:
03:07:B9:B3:02:20:77:5B:F3:83:42:7A:D3:D1:FC:C1:
96:1B:D3:0F:FB:DD:65:0F:09:45:83:5C:95:C2:5A:F8:
4C:B1:8D:EB:F1:97
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : AD:F7:BE:FA:7C:FF:10:C8:8B:9D:3D:9C:1E:3E:18:6A:
B4:67:29:5D:CF:B1:0C:24:CA:85:86:34:EB:DC:82:8A
Timestamp : Apr 18 13:27:49.782 2023 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:6F:EB:1C:EB:51:56:B7:66:7F:4F:39:0F:
99:A6:38:D6:40:F0:6F:14:BA:ED:1C:88:3B:6C:29:53:
9C:62:78:BA:02:21:00:BA:D1:62:4C:80:AD:98:1F:59:
01:C3:07:98:1D:D1:8B:9C:78:06:A1:7E:19:20:9B:C5:
F0:74:21:0E:C5:56:A8
Key Usage: Digital Signature, Key Encipherment
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:skribbl.io
Technical

DNS Lookup

A Records

Host IP Address Class TTL
skribbl.io. 193.70.6.186 IN 1798

NS Records

Host Nameserver Class TTL
skribbl.io. dns1.registrar-servers.com. IN 1799
skribbl.io. dns2.registrar-servers.com. IN 1799

MX Records

Priority Host Server Class TTL
10 skribbl.io. eforward1.registrar-servers.com. IN 1799
10 skribbl.io. eforward2.registrar-servers.com. IN 1799
10 skribbl.io. eforward3.registrar-servers.com. IN 1799
15 skribbl.io. eforward4.registrar-servers.com. IN 1799
20 skribbl.io. eforward5.registrar-servers.com. IN 1799

SOA Records

Domain Name Primary NS Responsible Email TTL
skribbl.io. dns1.registrar-servers.com. hostmaster.registrar-servers.com. 3600

TXT Records

Host Value Class TTL
skribbl.io. google-site-verification=ddRtcV04bdcSQI4WXBEV48xknyVVEKsbMj0zQG85Bpk IN 1798
skribbl.io. v=spf1 IN 1799

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
Date: 23rd May, 2023
X-Powered-By: Express
Content-Length: 21685
ETag: W/"54b5-xwPzmGRp/gMHry/MO1pwZn+bbg4"
Connection: keep-alive
Keep-Alive: timeout=5

Whois Lookup

Created: 31st January, 2017
Changed: 27th December, 2019
Expires: 31st January, 2025
Registrar: NameCheap, Inc.
Status: ok
Nameservers: dns1.registrar-servers.com
dns2.registrar-servers.com
Owner Name: REDACTED FOR PRIVACY
Owner Organization: Privacy service provided by Withheld for Privacy ehf
Owner Street: REDACTED FOR PRIVACY
Owner Post Code: REDACTED FOR PRIVACY
Owner City: REDACTED FOR PRIVACY
Owner State: Capital Region
Owner Country: IS
Owner Phone: REDACTED FOR PRIVACY
Owner Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin Post Code: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Post Code: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Full Whois: Domain Name: skribbl.io
Registry Domain ID: 11ea03f1830147838f02f881d27e01fe-DONUTS
Registrar WHOIS Server: whois.namecheap.com
Registrar URL: https://www.namecheap.com/
Updated Date: 2019-12-27T18:36:48Z
Creation Date: 2017-01-31T13:33:45Z
Registry Expiry Date: 2025-01-31T13:33:45Z
Registrar: NameCheap, Inc.
Registrar IANA ID: 1068
Registrar Abuse Contact Email: abuse@namecheap.com
Registrar Abuse Contact Phone: +1.9854014545
Domain Status: ok https://icann.org/epp#ok
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Privacy service provided by Withheld for Privacy ehf
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: Capital Region
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: IS
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: dns1.registrar-servers.com
Name Server: dns2.registrar-servers.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2023-05-23T10:50:11Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

Terms of Use: Access to WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the registry database. The data in this record is provided by Identity Digital or the Registry Operator for informational purposes only, and accuracy is not guaranteed. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Identity Digital except as reasonably necessary to register domain names or modify existing registrations. When using the Whois service, please consider the following: The Whois service is not a replacement for standard EPP commands to the SRS service. Whois is not considered authoritative for registered domain objects. The Whois service may be scheduled for downtime during production or OT&E maintenance periods. Queries to the Whois services are throttled. If too many queries are received from a single IP address within a specified time, the service will begin to reject further queries for a period of time to prevent disruption of Whois service access. Abuse of the Whois system through data mining is mitigated by detecting and limiting bulk query access from single sources. Where applicable, the presence of a [Non-Public Data] tag indicates that such data is not made publicly available due to applicable data privacy laws or requirements. Should you wish to contact the registrant, please refer to the Whois records available through the registrar URL listed above. Access to non-public data may be provided, upon request, where it can be reasonably confirmed that the requester holds a specific legitimate interest and a proper legal basis for accessing the withheld data. Access to this data provided by Identity Digital can be requested by submitting a request via the form found at https://www.identity.digital/about/policies/whois-layered-access/. The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name. Identity Digital Inc. and Registry Operator reserve the right to modify these terms at any time. By submitting this query, you agree to abide by this policy.

Nameservers

Name IP Address
dns1.registrar-servers.com 156.154.132.200
dns2.registrar-servers.com 156.154.133.200
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