3.1 sec in total
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We analyzed Cs-kulecniky.cz page load time and found that the first response time was 660 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
cs-kulecniky.cz performance score
Our browser made a total of 47 requests to load all elements on the main page. We found that 94% of them (44 requests) were addressed to the original Cs-kulecniky.cz, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Toplist.cz. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Cs-kulecniky.cz.
Page size can be reduced by 92.5 kB (12%)
In fact, the total size of Cs-kulecniky.cz main page is 746.5 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. 40% of websites need less resources to load. Images take 687.1 kB which makes up the majority of the site volume.
Potential reduce by 21.3 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 21.3 kB or 72% of the original size.
Potential reduce by 60.4 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. Cs Kule Cni Ky images are well optimized though.
Potential reduce by 34 B
Potential reduce by 10.7 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. Cs-kulecniky.cz needs all CSS files to be minified and compressed as it can save up to 10.7 kB or 84% of the original size.
Number of requests can be reduced by 5 (11%)
cs-kulecniky.cz accessibility score
These are opportunities to improve the legibility of your content.
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.
<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.
Links do not have a discernible name
cs-kulecniky.cz best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
Displays images with incorrect aspect ratio
Serves images with low resolution
Browser errors were logged to the console
cs-kulecniky.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
robots.txt is not valid
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cs-kulecniky.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) and no language is claimed in <html> or <meta> tags either. Our system also found out that Cs-kulecniky.cz main page’s claimed encoding is windows-1250. 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.
Open Graph description is not detected on the main page of Cs Kule Cni Ky. 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: