Tools & Wizards About Us
2015.js13kgames.com screenshot

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

2015.js13kgames.com

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

Page Load Speed

4.4 sec in total

First Response

712 ms

Resources Loaded

1.9 sec

Page Rendered

1.8 sec

2015.js13kgames.com screenshot

About Website

Click here to check amazing 2015 Js13kGames content for Iran. Otherwise, check out these important facts you probably never knew about 2015.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. The main theme for 2015 was Reversed.

Visit 2015.js13kgames.com

Key Findings

We analyzed 2015.js13kgames.com page load time and found that the first response time was 712 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

2015.js13kgames.com performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value170 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0.077

95/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

2015.js13kgames.com

712 ms

style.css

318 ms

like.php

94 ms

btn_donate_LG.gif

26 ms

logo.png

212 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 63% of them (63 requests) were addressed to the original 2015.js13kgames.com, 23% (23 requests) were made to Js13kgames.com and 4% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (818 ms) relates to the external source Js13kgames.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 73.1 kB (13%)

Content Size

580.8 kB

After Optimization

507.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 2015.js13kgames.com main page is 580.8 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. 40% of websites need less resources to load. Images take 481.7 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 45.7 kB

  • Original 61.3 kB
  • After minification 59.4 kB
  • After compression 15.6 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 45.7 kB or 75% of the original size.

Image Optimization

-2%

Potential reduce by 10.7 kB

  • Original 481.7 kB
  • After minification 471.0 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. 2015 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 16.6 kB

  • Original 20.6 kB
  • After minification 17.0 kB
  • After compression 4.0 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. 2015.js13kgames.com needs all CSS files to be minified and compressed as it can save up to 16.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (12%)

Requests Now

98

After Optimization

86

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 2015 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 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

2015.js13kgames.com

2015.js13kgames.com

712 ms

style.css

style.css

318 ms

like.php

like.php

94 ms

btn_donate_LG.gif

btn_donate_LG.gif

26 ms

logo.png

logo.png

212 ms

photo.png

photo.png

212 ms

js13k-2015-tshirt.png

js13k-2015-tshirt.png

248 ms

triska-banner.png

triska-banner.png

484 ms

spartez.png

spartez.png

482 ms

mozilla.png

mozilla.png

483 ms

famobi.png

famobi.png

482 ms

codility.png

codility.png

483 ms

jscrambler.png

jscrambler.png

484 ms

andrzej_mazur.png

andrzej_mazur.png

484 ms

richard_davey.png

richard_davey.png

485 ms

christer_kaitila.png

christer_kaitila.png

490 ms

will_eastcott.png

will_eastcott.png

490 ms

jason_weathersby.png

jason_weathersby.png

490 ms

robert_podgorski.png

robert_podgorski.png

531 ms

austin_hallock.png

austin_hallock.png

531 ms

pablo_farias.png

pablo_farias.png

531 ms

ewa_mazur.png

ewa_mazur.png

610 ms

wojciech_urbanski.png

wojciech_urbanski.png

611 ms

pixel.gif

pixel.gif

30 ms

gvTlnd7X33o.js

gvTlnd7X33o.js

41 ms

FEppCFCt76d.png

FEppCFCt76d.png

25 ms

__small.jpg

__small.jpg

503 ms

__small.jpg

__small.jpg

502 ms

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__small.jpg

503 ms

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__small.jpg

502 ms

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__small.jpg

504 ms

__small.jpg

__small.jpg

501 ms

__small.jpg

__small.jpg

597 ms

__small.jpg

__small.jpg

601 ms

__small.jpg

__small.jpg

601 ms

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__small.jpg

601 ms

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__small.jpg

601 ms

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__small.jpg

603 ms

__small.jpg

__small.jpg

702 ms

__small.jpg

__small.jpg

708 ms

__small.jpg

__small.jpg

708 ms

__small.jpg

__small.jpg

708 ms

__small.jpg

__small.jpg

709 ms

__small.jpg

__small.jpg

714 ms

__small.jpg

__small.jpg

808 ms

__small.jpg

__small.jpg

815 ms

__small.jpg

__small.jpg

816 ms

__small.jpg

__small.jpg

816 ms

__small.jpg

__small.jpg

818 ms

ilker_aydin.png

ilker_aydin.png

501 ms

pedro_fortuna.png

pedro_fortuna.png

529 ms

tomasz_wesolowski.png

tomasz_wesolowski.png

530 ms

phaser-box2d.png

phaser-box2d.png

529 ms

isogenic.png

isogenic.png

600 ms

construct2.png

construct2.png

605 ms

moneywithhtml5.png

moneywithhtml5.png

606 ms

playcanvas.png

playcanvas.png

642 ms

gvTlnd7X33o.js

gvTlnd7X33o.js

8 ms

impactjs.png

impactjs.png

537 ms

gamedevcourse.png

gamedevcourse.png

536 ms

protoio.png

protoio.png

602 ms

webstorm.png

webstorm.png

611 ms

fromnulltofull.png

fromnulltofull.png

612 ms

kendoui.png

kendoui.png

637 ms

codepen.png

codepen.png

640 ms

nodebb.png

nodebb.png

641 ms

blossom.png

blossom.png

711 ms

widgets.js

widgets.js

43 ms

orangepixel.png

orangepixel.png

721 ms

elliotquest.png

elliotquest.png

693 ms

pusher.png

pusher.png

478 ms

buildanhtml5game.png

buildanhtml5game.png

480 ms

jsbin.png

jsbin.png

480 ms

wizardslizard.png

wizardslizard.png

551 ms

curiousexpedition.png

curiousexpedition.png

566 ms

flame.png

flame.png

569 ms

misstake.png

misstake.png

580 ms

jscrambler.png

jscrambler.png

583 ms

graduate.ttf

graduate.ttf

583 ms

ga.js

ga.js

29 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

23 ms

category-desktop.png

category-desktop.png

652 ms

category-mobile.png

category-mobile.png

669 ms

category-server.png

category-server.png

675 ms

settings

settings

69 ms

__utm.gif

__utm.gif

18 ms

bg_content.png

bg_content.png

639 ms

bg_header.png

bg_header.png

642 ms

js13kgames.png

js13kgames.png

642 ms

button.856debeac157d9669cf51e73a08fbc93.js

button.856debeac157d9669cf51e73a08fbc93.js

3 ms

embeds

embeds

25 ms

follow_button.2f70fb173b9000da126c79afe2098f02.en.html

follow_button.2f70fb173b9000da126c79afe2098f02.en.html

13 ms

ribbon_big_bg.png

ribbon_big_bg.png

640 ms

ribbon_big_left.png

ribbon_big_left.png

659 ms

ribbon_big_right.png

ribbon_big_right.png

666 ms

bg-blue.png

bg-blue.png

639 ms

icon_arrow.png

icon_arrow.png

640 ms

circle.png

circle.png

640 ms

trophy.png

trophy.png

650 ms

ribbon_arrow.png

ribbon_arrow.png

668 ms

Accessibility Review

2015.js13kgames.com accessibility score

60

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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

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

2015.js13kgames.com best practices score

83

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

SEO Factors

2015.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 2015.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 2015.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

2015.js13kgames.com

Open Graph data is detected on the main page of 2015 Js13kGames. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: