2.8 sec in total
114 ms
2.4 sec
289 ms
Welcome to codechef.org homepage info - get ready to check Code Chef best content right away, or after learning these important things about codechef.org
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Visit codechef.orgWe analyzed Codechef.org page load time and found that the first response time was 114 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
codechef.org performance score
name
value
score
weighting
Value6.2 s
3/100
10%
Value7.4 s
4/100
25%
Value10.8 s
6/100
10%
Value14,880 ms
0/100
30%
Value0.433
22/100
15%
Value25.5 s
0/100
10%
114 ms
11 ms
23 ms
115 ms
12 ms
Our browser made a total of 132 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Codechef.org, 44% (58 requests) were made to Codechef.com and 24% (32 requests) were made to S3.amazonaws.com. The less responsive or slowest element that took the longest time to load (667 ms) relates to the external source Scontent.xx.fbcdn.net.
Page size can be reduced by 547.1 kB (40%)
1.4 MB
818.9 kB
In fact, the total size of Codechef.org main page is 1.4 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. 45% of websites need less resources to load. Images take 922.4 kB which makes up the majority of the site volume.
Potential reduce by 65.3 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 65.3 kB or 79% of the original size.
Potential reduce by 231.0 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. Obviously, Code Chef needs image optimization as it can save up to 231.0 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 161.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 161.1 kB or 65% of the original size.
Potential reduce by 89.6 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. Codechef.org needs all CSS files to be minified and compressed as it can save up to 89.6 kB or 80% of the original size.
Number of requests can be reduced by 48 (53%)
91
43
The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Code Chef. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
codechef.org
114 ms
codechef.com
11 ms
www.codechef.com
23 ms
www.codechef.com
115 ms
css_b8c79b8aa8ae82c8b92acc57703c2dcb.css
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jquery.min.js
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drupal.js
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popupoverlay.js
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common.js
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localStorage.js
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keybinding.js
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codechefGenericModal.js
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todo_notification.js
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fb_sdk.js
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codechef_common_functions.js
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fivestar.js
43 ms
lightbox.js
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nice_menus.js
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jquery.scrollTo-min.js
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jquery.localscroll-min.js
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tableofcontents.js
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jquery.tools.js
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jquery-jcarousel.js
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jquery-jcarousel.css
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jcarousel-skin.css
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jsapi
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conversion.js
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sdk.js
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body-bg.jpg
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schools_click_image.png
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github.png
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question-icon.gif
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menu-bullet.gif
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masthead-practice-bg.jpg
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HP-IPC-1.9-2016.png
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homepage-banner.png
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google1.png
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codechef.org accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
[aria-hidden="true"] elements contain focusable descendents
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
Image elements do not have [alt] attributes
Links do not have a discernible name
codechef.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
codechef.org SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
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
Document uses legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Codechef.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Codechef.org 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.
codechef.org
Open Graph description is not detected on the main page of Code Chef. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: