Tools & Wizards About Us
2021.js13kgames.com screenshot

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

2021.js13kgames.com

js13kGames - HTML5 and JavaScript Game Development Competition in just 13 kilobytes

Page Load Speed

6 sec in total

First Response

898 ms

Resources Loaded

2.6 sec

Page Rendered

2.5 sec

2021.js13kgames.com screenshot

About Website

Click here to check amazing 2021 Js13kGames content for Iran. Otherwise, check out these important facts you probably never knew about 2021.js13kgames.com

Js13kGames is a JavaScript coding competition for HTML5 game developers. The fun part of the compo is the file size limit set to 13 kilobytes.

Visit 2021.js13kgames.com

Key Findings

We analyzed 2021.js13kgames.com page load time and found that the first response time was 898 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

2021.js13kgames.com performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

91/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value520 ms

56/100

30%

CLS (Cumulative Layout Shift)

Value0.036

100/100

15%

TTI (Time to Interactive)

Value8.3 s

39/100

10%

Network Requests Diagram

2021.js13kgames.com

898 ms

style.css

295 ms

jquery-2.1.4.min.js

198 ms

jquery.countdown.min.js

205 ms

moment-with-locales.min.js

208 ms

Our browser made a total of 156 requests to load all elements on the main page. We found that 68% of them (106 requests) were addressed to the original 2021.js13kgames.com, 22% (35 requests) were made to Js13kgames.com and 3% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (963 ms) relates to the external source Js13kgames.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 97.9 kB (10%)

Content Size

989.8 kB

After Optimization

891.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 2021.js13kgames.com main page is 989.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Images take 863.4 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 63.5 kB

  • Original 85.4 kB
  • After minification 79.8 kB
  • After compression 21.9 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 63.5 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 15.1 kB

  • Original 863.4 kB
  • After minification 848.4 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. 2021 Js13kGames images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-81%

Potential reduce by 19.2 kB

  • Original 23.8 kB
  • After minification 19.5 kB
  • After compression 4.5 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. 2021.js13kgames.com needs all CSS files to be minified and compressed as it can save up to 19.2 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (7%)

Requests Now

147

After Optimization

136

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 147 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 2021 Js13kGames. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

2021.js13kgames.com

2021.js13kgames.com

898 ms

style.css

style.css

295 ms

jquery-2.1.4.min.js

jquery-2.1.4.min.js

198 ms

jquery.countdown.min.js

jquery.countdown.min.js

205 ms

moment-with-locales.min.js

moment-with-locales.min.js

208 ms

moment.min.js

moment.min.js

215 ms

moment-timezone.min.js

moment-timezone.min.js

298 ms

slackin.js

slackin.js

30 ms

like.php

like.php

158 ms

btn_donate_LG.gif

btn_donate_LG.gif

131 ms

__small.jpg

__small.jpg

442 ms

__small.jpg

__small.jpg

443 ms

__small.jpg

__small.jpg

444 ms

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445 ms

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446 ms

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454 ms

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536 ms

__small.jpg

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540 ms

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540 ms

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543 ms

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549 ms

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562 ms

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638 ms

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642 ms

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644 ms

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__small.jpg

644 ms

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653 ms

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668 ms

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__small.jpg

740 ms

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__small.jpg

744 ms

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746 ms

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747 ms

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__small.jpg

756 ms

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775 ms

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__small.jpg

842 ms

__small.jpg

__small.jpg

845 ms

__small.jpg

__small.jpg

850 ms

__small.jpg

__small.jpg

849 ms

__small.jpg

__small.jpg

860 ms

__small.jpg

__small.jpg

882 ms

__small.jpg

__small.jpg

943 ms

__small.jpg

__small.jpg

947 ms

__small.jpg

__small.jpg

953 ms

__small.jpg

__small.jpg

952 ms

__small.jpg

__small.jpg

963 ms

pixel.gif

pixel.gif

126 ms

bg_content.png

bg_content.png

123 ms

bg_header.png

bg_header.png

122 ms

js13kgames.png

js13kgames.png

122 ms

ribbon_big_bg.png

ribbon_big_bg.png

123 ms

ribbon_big_left.png

ribbon_big_left.png

123 ms

ribbon_big_right.png

ribbon_big_right.png

121 ms

logo.png

logo.png

249 ms

andrzej.png

andrzej.png

224 ms

index-banner-decentralized.png

index-banner-decentralized.png

252 ms

index-banner-webmonetization.png

index-banner-webmonetization.png

251 ms

index-banner-webxr.png

index-banner-webxr.png

250 ms

triska-reloaded-play.png

triska-reloaded-play.png

222 ms

ebay.png

ebay.png

320 ms

near-protocol.png

near-protocol.png

321 ms

ipfs.png

ipfs.png

331 ms

grantfortheweb.png

grantfortheweb.png

332 ms

facebookgaming.png

facebookgaming.png

333 ms

github.png

github.png

336 ms

poki.png

poki.png

419 ms

coil.png

coil.png

420 ms

colyseus.png

colyseus.png

437 ms

flux.png

flux.png

437 ms

filecoin.png

filecoin.png

439 ms

crazygames.png

crazygames.png

444 ms

gamesnacks.png

gamesnacks.png

517 ms

appfire.png

appfire.png

519 ms

4everland.png

4everland.png

537 ms

enclavegames.png

enclavegames.png

540 ms

smartdust.png

smartdust.png

541 ms

op-games.png

op-games.png

552 ms

gamedevjs.png

gamedevjs.png

616 ms

jupiter_hadley.png

jupiter_hadley.png

617 ms

lee_reilly.png

lee_reilly.png

639 ms

ewa_mazur.png

ewa_mazur.png

639 ms

christer_kaitila.png

christer_kaitila.png

616 ms

graduate.ttf

graduate.ttf

628 ms

widgets.js

widgets.js

103 ms

ania_kubow.png

ania_kubow.png

598 ms

timur_manyanov.png

timur_manyanov.png

600 ms

michelle_mannering.png

michelle_mannering.png

625 ms

noel_meudec.png

noel_meudec.png

624 ms

bjorn_ritzl.png

bjorn_ritzl.png

630 ms

ahmed_khalifa.png

ahmed_khalifa.png

650 ms

a7LoXQDbYK9.js

a7LoXQDbYK9.js

21 ms

FEppCFCt76d.png

FEppCFCt76d.png

22 ms

ga.js

ga.js

9 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

58 ms

dann_sullivan.png

dann_sullivan.png

596 ms

tom_greenaway.png

tom_greenaway.png

595 ms

__utm.gif

__utm.gif

13 ms

paul_gadi.png

paul_gadi.png

599 ms

dietrich_ayala.png

dietrich_ayala.png

599 ms

johnny_matthews.png

johnny_matthews.png

605 ms

aliaksandr_hudzilin.png

aliaksandr_hudzilin.png

625 ms

collect

collect

31 ms

settings

settings

94 ms

vlad_grichina.png

vlad_grichina.png

596 ms

pablo_navarro.png

pablo_navarro.png

597 ms

fazri_zubair.png

fazri_zubair.png

620 ms

nathan_lie.png

nathan_lie.png

620 ms

yuriy_dybskiy.png

yuriy_dybskiy.png

628 ms

raf_mertens.png

raf_mertens.png

652 ms

button.856debeac157d9669cf51e73a08fbc93.js

button.856debeac157d9669cf51e73a08fbc93.js

20 ms

embeds

embeds

35 ms

follow_button.2f70fb173b9000da126c79afe2098f02.en.html

follow_button.2f70fb173b9000da126c79afe2098f02.en.html

30 ms

grzegorz_tanczyk.png

grzegorz_tanczyk.png

596 ms

fernando_serrano_garcia.png

fernando_serrano_garcia.png

596 ms

josh_marinacci.png

josh_marinacci.png

615 ms

sebastien_vandenberghe.png

sebastien_vandenberghe.png

616 ms

steven_yau.png

steven_yau.png

624 ms

joep_van_duinen.png

joep_van_duinen.png

652 ms

daniel_keller.png

daniel_keller.png

595 ms

tim_sulmone.png

tim_sulmone.png

595 ms

victor_debone.png

victor_debone.png

617 ms

pawel_skierczynski.png

pawel_skierczynski.png

616 ms

js13ktshirt.png

js13ktshirt.png

626 ms

cash.png

cash.png

651 ms

coil.png

coil.png

595 ms

near.png

near.png

596 ms

fil.png

fil.png

619 ms

flux.png

flux.png

618 ms

bg-blue.png

bg-blue.png

626 ms

icon_arrow.png

icon_arrow.png

648 ms

circle.png

circle.png

595 ms

trophy.png

trophy.png

596 ms

playcanvas.png

playcanvas.png

619 ms

construct3.png

construct3.png

620 ms

webstorm.png

webstorm.png

627 ms

pyxeledit.png

pyxeledit.png

640 ms

phasereditor.png

phasereditor.png

606 ms

codepen.png

codepen.png

595 ms

kendoui.png

kendoui.png

621 ms

moneywithhtml5.png

moneywithhtml5.png

620 ms

nodebb.png

nodebb.png

626 ms

github.png

github.png

630 ms

questocat.png

questocat.png

597 ms

zenva.png

zenva.png

615 ms

colyseusarena.png

colyseusarena.png

620 ms

smartdust.png

smartdust.png

620 ms

protoio.png

protoio.png

626 ms

spritestack.png

spritestack.png

622 ms

coil2.png

coil2.png

597 ms

poki.png

poki.png

625 ms

ribbon_arrow.png

ribbon_arrow.png

620 ms

category-desktop.png

category-desktop.png

620 ms

category-mobile.png

category-mobile.png

626 ms

category-server.png

category-server.png

612 ms

category-webxr.png

category-webxr.png

597 ms

category-webmonetization.png

category-webmonetization.png

633 ms

category-decentralized.png

category-decentralized.png

619 ms

Accessibility Review

2021.js13kgames.com accessibility score

64

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

2021.js13kgames.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

2021.js13kgames.com SEO score

67

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 2021.js13kgames.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that 2021.js13kgames.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

2021.js13kgames.com

Open Graph data is detected on the main page of 2021 Js13kGames. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: