4.4 sec in total
478 ms
3.6 sec
368 ms
Visit czp.cuni.cz now to see the best up-to-date Czp Cuni content for Czech Republic and also check out these interesting facts you probably never knew about czp.cuni.cz
Centrum pro otázky životního prostředí Univerzity Karlovy
Visit czp.cuni.czWe analyzed Czp.cuni.cz page load time and found that the first response time was 478 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
czp.cuni.cz performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value4.1 s
47/100
25%
Value5.6 s
52/100
10%
Value50 ms
100/100
30%
Value0.001
100/100
15%
Value4.8 s
79/100
10%
478 ms
576 ms
258 ms
271 ms
264 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that 96% of them (50 requests) were addressed to the original Czp.cuni.cz, 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Czp.cuni.cz.
Page size can be reduced by 734.4 kB (49%)
1.5 MB
767.2 kB
In fact, the total size of Czp.cuni.cz main page is 1.5 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. 45% of websites need less resources to load. Javascripts take 584.6 kB which makes up the majority of the site volume.
Potential reduce by 22.6 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 22.6 kB or 71% of the original size.
Potential reduce by 51.7 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. Czp Cuni images are well optimized though.
Potential reduce by 407.9 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 407.9 kB or 70% of the original size.
Potential reduce by 252.1 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. Czp.cuni.cz needs all CSS files to be minified and compressed as it can save up to 252.1 kB or 83% of the original size.
Number of requests can be reduced by 31 (62%)
50
19
The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Czp Cuni. 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 from 19 to 1 for CSS and as a result speed up the page load time.
czp.cuni.cz
478 ms
576 ms
bootstrap.min.css
258 ms
bootstrap-responsive.min.css
271 ms
bootstrap-extended.css
264 ms
bootstrap-frontend.min.css
416 ms
bootstrap-responsive-frontend.min.css
351 ms
system.css
374 ms
general.css
381 ms
template.css
670 ms
blue.css
548 ms
news.css
497 ms
jsn_wide.css
548 ms
jsn_mobile.css
549 ms
jsn_social_icons.css
526 ms
custom.css
665 ms
modal.css
886 ms
finder.css
701 ms
template.css
727 ms
jquery.min.js
869 ms
jquery-noconflict.js
822 ms
jquery-migrate.min.js
821 ms
caption.js
851 ms
bootstrap.min.js
852 ms
mootools-core.js
1110 ms
core.js
973 ms
mootools-more.js
1333 ms
noconflict.js
1016 ms
utils.js
1010 ms
jsn_template.js
1143 ms
modal.js
1139 ms
autocompleter.js
1160 ms
logoRGBwebmobil.png
1182 ms
logoRGB.png
1266 ms
en.gif
1275 ms
cz.gif
1273 ms
LPP.png
1704 ms
Cecilia.png
1384 ms
adaptace_na_zmenu-_klimatu_povodne01.jpg
1164 ms
SDIssues02.jpg
1982 ms
products_with_chemicals_3.PNG
1851 ms
Charles-University-symbol-2.png
1114 ms
system.css
1202 ms
header-pattern.png
126 ms
icons-social.png
158 ms
mainnav-bg.png
133 ms
icons-uni.png
153 ms
dot.png
295 ms
gradient-footer-bg-wide.png
276 ms
analytics.js
21 ms
collect
13 ms
print.css
119 ms
czp.cuni.cz 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
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
czp.cuni.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
czp.cuni.cz SEO score
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 Czp.cuni.cz 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 Czp.cuni.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.
czp.cuni.cz
Open Graph description is not detected on the main page of Czp Cuni. 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: