3.6 sec in total
543 ms
2.9 sec
133 ms
Visit cezonline.cez.cz now to see the best up-to-date Cezonline Cez content for Czech Republic and also check out these interesting facts you probably never knew about cezonline.cez.cz
MŮJ ČEZ vám umožní pohodlné a rychlé řešení požadavků souvisejících s odběrem elektřiny, plynu, tepla a mobilních služeb.
Visit cezonline.cez.czWe analyzed Cezonline.cez.cz page load time and found that the first response time was 543 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
cezonline.cez.cz performance score
name
value
score
weighting
Value29.6 s
0/100
10%
Value31.8 s
0/100
25%
Value29.6 s
0/100
10%
Value70 ms
99/100
30%
Value0.002
100/100
15%
Value35.2 s
0/100
10%
543 ms
740 ms
373 ms
371 ms
734 ms
Our browser made a total of 13 requests to load all elements on the main page. We found that 92% of them (12 requests) were addressed to the original Cezonline.cez.cz, 8% (1 request) were made to Cz.hit.gemius.pl. The less responsive or slowest element that took the longest time to load (841 ms) belongs to the original domain Cezonline.cez.cz.
Page size can be reduced by 512.6 kB (83%)
620.0 kB
107.4 kB
In fact, the total size of Cezonline.cez.cz main page is 620.0 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. 20% of websites need less resources to load. CSS take 504.5 kB which makes up the majority of the site volume.
Potential reduce by 3.4 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. This page needs HTML code to be minified as it can gain 1.0 kB, which is 21% 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 3.4 kB or 70% of the original size.
Potential reduce by 1.7 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. Obviously, Cezonline Cez needs image optimization as it can save up to 1.7 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 66.2 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 66.2 kB or 65% of the original size.
Potential reduce by 441.4 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. Cezonline.cez.cz needs all CSS files to be minified and compressed as it can save up to 441.4 kB or 87% of the original size.
Number of requests can be reduced by 6 (50%)
12
6
The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cezonline Cez. 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 JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
portal
543 ms
ur_nn7.css
740 ms
jsCookies.js
373 ms
loginCol.js
371 ms
style.css
734 ms
main.css
532 ms
not-logged.css
492 ms
jquery-1.11.1.min.js
841 ms
gemius.js
500 ms
htmlbg.jpg
130 ms
logobig.png
132 ms
inputicons.png
129 ms
redot.gif
106 ms
cezonline.cez.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
<frame> or <iframe> elements do not have a title
Form elements do not have associated labels
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
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
cezonline.cez.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
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
cezonline.cez.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
CS
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cezonline.cez.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Cezonline.cez.cz main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
cezonline.cez.cz
Open Graph description is not detected on the main page of Cezonline Cez. 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: