7.3 sec in total
2 sec
4.8 sec
519 ms
Click here to check amazing Kultura21 content for Czech Republic. Otherwise, check out these important facts you probably never knew about kultura21.cz
Hudební, filmové, divadelní akce. Výtvarné umění. Události v kultuře z celé České republiky na jednom místě.
Visit kultura21.czWe analyzed Kultura21.cz page load time and found that the first response time was 2 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster. This domain responded with an error, which can significantly jeopardize Kultura21.cz rating and web reputation
kultura21.cz performance score
name
value
score
weighting
Value2.5 s
67/100
10%
Value11.7 s
0/100
25%
Value8.5 s
18/100
10%
Value1,940 ms
8/100
30%
Value0.008
100/100
15%
Value17.6 s
4/100
10%
2030 ms
238 ms
265 ms
362 ms
365 ms
Our browser made a total of 117 requests to load all elements on the main page. We found that 70% of them (82 requests) were addressed to the original Kultura21.cz, 9% (11 requests) were made to Apis.google.com and 3% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Kultura21.cz.
Page size can be reduced by 321.9 kB (15%)
2.1 MB
1.8 MB
In fact, the total size of Kultura21.cz main page is 2.1 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. 65% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.
Potential reduce by 68.7 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 68.7 kB or 72% of the original size.
Potential reduce by 72.6 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. Kultura21 images are well optimized though.
Potential reduce by 112.1 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 112.1 kB or 39% of the original size.
Potential reduce by 68.6 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. Kultura21.cz needs all CSS files to be minified and compressed as it can save up to 68.6 kB or 88% of the original size.
Number of requests can be reduced by 61 (54%)
112
51
The browser has sent 112 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kultura21. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.
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kultura21.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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
kultura21.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
kultura21.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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kultura21.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 Kultura21.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.
kultura21.cz
Open Graph data is detected on the main page of Kultura21. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: