2 sec in total
365 ms
1.4 sec
176 ms
Click here to check amazing Prologin content for France. Otherwise, check out these important facts you probably never knew about prologin.org
Prologin is a computer science contest. Our goal is to introduce students to the world of programming and algorithms by subjecting them to several conventional problems and exciting challenges.
Visit prologin.orgWe analyzed Prologin.org page load time and found that the first response time was 365 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
prologin.org performance score
name
value
score
weighting
Value2.5 s
68/100
10%
Value4.4 s
40/100
25%
Value2.9 s
95/100
10%
Value120 ms
97/100
30%
Value0
100/100
15%
Value4.7 s
80/100
10%
365 ms
499 ms
60 ms
167 ms
258 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 62% of them (21 requests) were addressed to the original Prologin.org, 12% (4 requests) were made to F.vimeocdn.com and 6% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (504 ms) belongs to the original domain Prologin.org.
Page size can be reduced by 580.8 kB (62%)
935.3 kB
354.5 kB
In fact, the total size of Prologin.org main page is 935.3 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. Javascripts take 483.5 kB which makes up the majority of the site volume.
Potential reduce by 17.0 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. This page needs HTML code to be minified as it can gain 3.6 kB, which is 16% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 17.0 kB or 75% of the original size.
Potential reduce by 6.4 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. Prologin images are well optimized though.
Potential reduce by 314.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 314.8 kB or 65% of the original size.
Potential reduce by 242.6 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. Prologin.org needs all CSS files to be minified and compressed as it can save up to 242.6 kB or 85% of the original size.
Number of requests can be reduced by 10 (34%)
29
19
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Prologin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
prologin.org
365 ms
prologin.org
499 ms
css
60 ms
bootstrap.min.css
167 ms
font-awesome.min.css
258 ms
prologin.css
263 ms
homepage.css
268 ms
logo_cube.png
326 ms
bdb3ff91f10a5be82af63aaab365651e971cfdf8.png
326 ms
155a81aaf6a7ef9dcc34bd8eb4fb9778d4960fe5.png
324 ms
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cc09ae6fd5567d3ee1675c375cd2a97762a2396b.jpg
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cdc6e8a56aec347e819c57766654cd9a49b8f13d.png
482 ms
90b3d5a25d87f99cc93700fea2d3983c2b29dfda.png
415 ms
134342417
72 ms
jquery.min.js
504 ms
bootstrap.min.js
478 ms
player.js
111 ms
player.css
97 ms
ga.js
58 ms
vuid.min.js
95 ms
__utm.gif
26 ms
proxy.html
51 ms
10479783_60x60.jpg
158 ms
small_cube.png
207 ms
footer.png
216 ms
Hgo13k-tfSpn0qi1SFdUfT8E0i7KZn-EPnyo3HZu7kw.woff
25 ms
d-6IYplOFocCacKzxwXSOD8E0i7KZn-EPnyo3HZu7kw.woff
33 ms
fontawesome-webfont.woff
257 ms
analytics.js
26 ms
collect
14 ms
prologin.org accessibility score
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
Buttons do not have an accessible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
prologin.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
prologin.org SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Prologin.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 Prologin.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.
prologin.org
Open Graph data is detected on the main page of Prologin. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: