6.9 sec in total
501 ms
6.2 sec
244 ms
Welcome to unium.cz homepage info - get ready to check Unium best content for Czech Republic right away, or after learning these important things about unium.cz
Unium.cz je studentský server určený pro sdílení studijních materiálů, referencí vyučujících a snadnou komunikaci mezi spolužáky.
Visit unium.czWe analyzed Unium.cz page load time and found that the first response time was 501 ms and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
unium.cz performance score
name
value
score
weighting
Value2.9 s
54/100
10%
Value3.2 s
74/100
25%
Value12.0 s
4/100
10%
Value4,420 ms
0/100
30%
Value0.198
62/100
15%
Value21.0 s
1/100
10%
501 ms
1086 ms
458 ms
6 ms
39 ms
Our browser made a total of 89 requests to load all elements on the main page. We found that 71% of them (63 requests) were addressed to the original Unium.cz, 11% (10 requests) were made to Static.xx.fbcdn.net and 7% (6 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Unium.cz.
Page size can be reduced by 433.2 kB (65%)
663.0 kB
229.8 kB
In fact, the total size of Unium.cz main page is 663.0 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. 45% of websites need less resources to load. Javascripts take 360.4 kB which makes up the majority of the site volume.
Potential reduce by 43.5 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 13.6 kB, which is 25% 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 43.5 kB or 79% of the original size.
Potential reduce by 9.5 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. Unium images are well optimized though.
Potential reduce by 267.0 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 267.0 kB or 74% of the original size.
Potential reduce by 113.2 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. Unium.cz needs all CSS files to be minified and compressed as it can save up to 113.2 kB or 85% of the original size.
Number of requests can be reduced by 46 (53%)
87
41
The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Unium. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
unium.cz
501 ms
www.unium.cz
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style_1.7.3.css
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jquery-1.3.1.min.js
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jquery-ui.min.js
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spcjs.php
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unium.cz 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
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
unium.cz 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
unium.cz SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Unium.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Unium.cz 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.
unium.cz
Open Graph description is not detected on the main page of Unium. 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: