1.9 sec in total
738 ms
986 ms
149 ms
Visit java.cz now to see the best up-to-date Java content for Czech Republic and also check out these interesting facts you probably never knew about java.cz
java.cz
Visit java.czWe analyzed Java.cz page load time and found that the first response time was 738 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
java.cz performance score
name
value
score
weighting
Value5.4 s
6/100
10%
Value6.7 s
8/100
25%
Value6.9 s
34/100
10%
Value20 ms
100/100
30%
Value0.016
100/100
15%
Value7.4 s
49/100
10%
738 ms
211 ms
220 ms
223 ms
226 ms
Our browser made a total of 22 requests to load all elements on the main page. We found that 95% of them (21 requests) were addressed to the original Java.cz, 5% (1 request) were made to C1.navrcholu.cz. The less responsive or slowest element that took the longest time to load (738 ms) belongs to the original domain Java.cz.
Page size can be reduced by 36.9 kB (59%)
62.7 kB
25.8 kB
In fact, the total size of Java.cz main page is 62.7 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. Only 5% of websites need less resources to load. HTML takes 25.4 kB which makes up the majority of the site volume.
Potential reduce by 20.4 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 20.4 kB or 80% of the original size.
Potential reduce by 107 B
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. Java images are well optimized though.
Potential reduce by 3.2 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 3.2 kB or 66% of the original size.
Potential reduce by 13.1 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. Java.cz needs all CSS files to be minified and compressed as it can save up to 13.1 kB or 78% of the original size.
Number of requests can be reduced by 12 (57%)
21
9
The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Java. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.
java.cz
738 ms
minmax.js;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
211 ms
common.css;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
220 ms
main.css;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
223 ms
home.css;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
226 ms
tiny_mce.css;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
223 ms
hyperion-app.js;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
313 ms
header_top_background.gif
111 ms
logo_java_portal.jpg
216 ms
prazdny.gif;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
111 ms
feed-icon-16x16.png;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
191 ms
main_menu_background.gif
127 ms
main_menu_list_image.gif
128 ms
left_menu_heading.gif
132 ms
sipka_mala.gif
205 ms
right_menu_1_heading.gif
234 ms
summary.do
214 ms
sipka_velka_licha.png
112 ms
browse_item_background.gif
110 ms
hit
248 ms
logo_amaio_footer.gif;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
112 ms
logo_hyperion_footer.gif;jsessionid=2EB736AE946CB0A47043CE8BA728FE00
127 ms
java.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.
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
java.cz 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
java.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
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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Java.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.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.
java.cz
Open Graph description is not detected on the main page of Java. 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: