1.3 sec in total
446 ms
799 ms
84 ms
Welcome to cgu.cz homepage info - get ready to check Cgu best content for Czech Republic right away, or after learning these important things about cgu.cz
Der Tschechische Geologische Dienst
Visit cgu.czWe analyzed Cgu.cz page load time and found that the first response time was 446 ms and then it took 883 ms 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.
cgu.cz performance score
name
value
score
weighting
Value3.9 s
24/100
10%
Value9.4 s
0/100
25%
Value8.3 s
19/100
10%
Value230 ms
86/100
30%
Value0.859
4/100
15%
Value9.3 s
31/100
10%
446 ms
348 ms
Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Cgu.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (446 ms) belongs to the original domain Cgu.cz.
Page size can be reduced by 13.5 kB (89%)
15.2 kB
1.7 kB
In fact, the total size of Cgu.cz main page is 15.2 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. CSS take 14.8 kB which makes up the majority of the site volume.
Potential reduce by 163 B
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 68 B, which is 16% 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 163 B or 38% of the original size.
Potential reduce by 13.3 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. Cgu.cz needs all CSS files to be minified and compressed as it can save up to 13.3 kB or 90% of the original size.
We found no issues to fix!
1
1
The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cgu. According to our analytics all requests are already optimized.
cgu.cz
446 ms
portals.css
348 ms
cgu.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
Image elements do not have [alt] attributes
Links do not have a discernible name
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>).
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.
cgu.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
Browser errors were logged to the console
Page has valid source maps
cgu.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
N/A
CS
WINDOWS-1252
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cgu.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Czech. Our system also found out that Cgu.cz main page’s claimed encoding is windows-1252. 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.
cgu.cz
Open Graph description is not detected on the main page of Cgu. 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: