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runner-staging.codewars.io screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

runner-staging.codewars.io

Codewars - Achieve mastery through coding practice and developer mentorship

Page Load Speed

6 sec in total

First Response

96 ms

Resources Loaded

1.5 sec

Page Rendered

4.4 sec

runner-staging.codewars.io screenshot

About Website

Welcome to runner-staging.codewars.io homepage info - get ready to check Runner Staging Codewars best content for United States right away, or after learning these important things about runner-staging.codewars.io

A coding practice website for all programming levels – Join a community of over 3 million developers and improve your coding skills in over 55 programming languages!

Visit runner-staging.codewars.io

Key Findings

We analyzed Runner-staging.codewars.io page load time and found that the first response time was 96 ms and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

runner-staging.codewars.io performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

70/100

25%

SI (Speed Index)

Value5.7 s

52/100

10%

TBT (Total Blocking Time)

Value7,720 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.023

100/100

15%

TTI (Time to Interactive)

Value13.5 s

11/100

10%

Network Requests Diagram

runner-staging.codewars.io

96 ms

www.codewars.com

224 ms

codewars.ec8bf20a4.css

114 ms

webfont.js

146 ms

js

254 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Runner-staging.codewars.io, 37% (23 requests) were made to Assets-global.website-files.com and 35% (22 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (722 ms) relates to the external source Fonts.gstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 383.7 kB (6%)

Content Size

6.4 MB

After Optimization

6.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Runner-staging.codewars.io main page is 6.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 6.3 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 32.6 kB

  • Original 42.9 kB
  • After minification 42.9 kB
  • After compression 10.3 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 32.6 kB or 76% of the original size.

Image Optimization

-6%

Potential reduce by 348.9 kB

  • Original 6.3 MB
  • After minification 6.0 MB

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. Runner Staging Codewars images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 503 B

  • Original 57.3 kB
  • After minification 57.3 kB
  • After compression 56.8 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

-6%

Potential reduce by 1.7 kB

  • Original 30.6 kB
  • After minification 30.6 kB
  • After compression 28.9 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. Runner-staging.codewars.io has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 8 (22%)

Requests Now

36

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Runner Staging Codewars. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

runner-staging.codewars.io

runner-staging.codewars.io

96 ms

www.codewars.com

www.codewars.com

224 ms

codewars.ec8bf20a4.css

codewars.ec8bf20a4.css

114 ms

webfont.js

webfont.js

146 ms

js

js

254 ms

css2

css2

150 ms

script.js

script.js

142 ms

optimize.js

optimize.js

149 ms

jquery-3.5.1.min.dc5e7f18c8.js

jquery-3.5.1.min.dc5e7f18c8.js

140 ms

codewars.b4ba8bd83.js

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149 ms

css

css

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js

js

135 ms

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1 ms

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box-69edcc3187336f9b0a3fbb4c73be9fe6.html

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collect

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collect

collect

131 ms

Accessibility Review

runner-staging.codewars.io accessibility score

92

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

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

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

Links do not have a discernible name

Best Practices

runner-staging.codewars.io best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

runner-staging.codewars.io SEO score

93

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

Links do not have descriptive text

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

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 Runner-staging.codewars.io 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 Runner-staging.codewars.io 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

runner-staging.codewars.io

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