5.8 sec in total
427 ms
4.9 sec
467 ms
Welcome to istudentzone.cz homepage info - get ready to check IStudentZone best content for Czech Republic right away, or after learning these important things about istudentzone.cz
Study. Party. Travel.
Visit istudentzone.czWe analyzed Istudentzone.cz page load time and found that the first response time was 427 ms and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
istudentzone.cz performance score
name
value
score
weighting
Value2.6 s
62/100
10%
Value12.0 s
0/100
25%
Value7.8 s
24/100
10%
Value560 ms
53/100
30%
Value0.013
100/100
15%
Value14.7 s
8/100
10%
427 ms
1701 ms
112 ms
772 ms
6 ms
Our browser made a total of 104 requests to load all elements on the main page. We found that 62% of them (64 requests) were addressed to the original Istudentzone.cz, 12% (12 requests) were made to Scontent-vie1-1.xx.fbcdn.net and 5% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Istudentzone.cz.
Page size can be reduced by 462.9 kB (29%)
1.6 MB
1.1 MB
In fact, the total size of Istudentzone.cz main page is 1.6 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. 70% of websites need less resources to load. Images take 981.7 kB which makes up the majority of the site volume.
Potential reduce by 45.2 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 6.3 kB, which is 11% 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 45.2 kB or 78% of the original size.
Potential reduce by 34.8 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. IStudentZone images are well optimized though.
Potential reduce by 232.8 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 232.8 kB or 58% of the original size.
Potential reduce by 150.1 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. Istudentzone.cz needs all CSS files to be minified and compressed as it can save up to 150.1 kB or 89% of the original size.
Number of requests can be reduced by 24 (24%)
101
77
The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IStudentZone. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.
istudentzone.cz
427 ms
www.istudentzone.cz
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layout.css
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istudentzone.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
ARIA IDs are not unique
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
[id] attributes on active, focusable elements are not unique
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
No form fields have multiple labels
<frame> or <iframe> elements do not have a title
Form elements do not have associated labels
Links do not have a discernible name
istudentzone.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
istudentzone.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Istudentzone.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Czech language. Our system also found out that Istudentzone.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.
istudentzone.cz
Open Graph data is detected on the main page of IStudentZone. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: