1.8 sec in total
322 ms
1.3 sec
131 ms
Click here to check amazing Java Vse content for Czech Republic. Otherwise, check out these important facts you probably never knew about java.vse.cz
Web věnovaný kursům programování na bakalářském oboru Aplikovaná informatika na VŠE a magisterském oboru Informační systémy a technologie, programování a výuce programování
Visit java.vse.czWe analyzed Java.vse.cz page load time and found that the first response time was 322 ms and then it took 1.5 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.
java.vse.cz performance score
name
value
score
weighting
Value1.7 s
93/100
10%
Value1.8 s
98/100
25%
Value2.4 s
98/100
10%
Value0 ms
100/100
30%
Value0.029
100/100
15%
Value1.7 s
100/100
10%
322 ms
444 ms
258 ms
211 ms
319 ms
Our browser made a total of 6 requests to load all elements on the main page. We found that all of those requests were addressed to Java.vse.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (444 ms) belongs to the original domain Java.vse.cz.
Page size can be reduced by 27.3 kB (72%)
37.8 kB
10.6 kB
In fact, the total size of Java.vse.cz main page is 37.8 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. HTML takes 23.6 kB which makes up the majority of the site volume.
Potential reduce by 16.9 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 16.9 kB or 72% of the original size.
Potential reduce by 1.2 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, Java Vse needs image optimization as it can save up to 1.2 kB or 38% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 9.2 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. Java.vse.cz needs all CSS files to be minified and compressed as it can save up to 9.2 kB or 82% of the original size.
We found no issues to fix!
3
3
The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Java Vse. According to our analytics all requests are already optimized.
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java.vse.cz accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<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
Form elements do not have associated labels
java.vse.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
java.vse.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Java.vse.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 Java.vse.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.
{{og_description}}
java.vse.cz
Open Graph description is not detected on the main page of Java Vse. 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: