8.8 sec in total
561 ms
7.4 sec
789 ms
Visit vls.cz now to see the best up-to-date Vls content for Czech Republic and also check out these interesting facts you probably never knew about vls.cz
VLS ČR, s.p. je státní společnost s více než 80. letou tradicí, s kořeny v první republice.
Visit vls.czWe analyzed Vls.cz page load time and found that the first response time was 561 ms and then it took 8.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
vls.cz performance score
name
value
score
weighting
Value9.1 s
0/100
10%
Value19.6 s
0/100
25%
Value13.0 s
2/100
10%
Value2,420 ms
5/100
30%
Value0.065
97/100
15%
Value23.5 s
1/100
10%
561 ms
1306 ms
213 ms
634 ms
146 ms
Our browser made a total of 53 requests to load all elements on the main page. We found that 70% of them (37 requests) were addressed to the original Vls.cz, 11% (6 requests) were made to Youtube.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (4.9 sec) belongs to the original domain Vls.cz.
Page size can be reduced by 81.3 kB (2%)
3.9 MB
3.8 MB
In fact, the total size of Vls.cz main page is 3.9 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.4 MB which makes up the majority of the site volume.
Potential reduce by 40.2 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 26.5 kB, which is 59% 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 40.2 kB or 89% of the original size.
Potential reduce by 160 B
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. Vls images are well optimized though.
Potential reduce by 29.6 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. This website has mostly compressed JavaScripts.
Potential reduce by 11.3 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. Vls.cz needs all CSS files to be minified and compressed as it can save up to 11.3 kB or 11% of the original size.
Number of requests can be reduced by 7 (15%)
47
40
The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vls. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.
vls.cz
561 ms
www.vls.cz
1306 ms
desktop.css
213 ms
desktop.js
634 ms
qozitdXUL-Q
146 ms
logo-simple.png
106 ms
fb.svg
109 ms
twitter.svg
418 ms
instagram.svg
419 ms
youtube.svg
536 ms
video-thumb.jpg
971 ms
fullscreen.svg
552 ms
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2147 ms
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2054 ms
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3137 ms
youtube-white.svg
2251 ms
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4424 ms
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2979 ms
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3660 ms
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3807 ms
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4901 ms
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4435 ms
search.svg
3966 ms
chevron-down.svg
3765 ms
flag-cz.svg
3868 ms
flag-en.svg
3911 ms
flag-de.svg
3972 ms
kudyznudy.png
4015 ms
psa.svg
4071 ms
analytics.js
19 ms
roboto-regular-webfont.woff
4045 ms
roboto-bold-webfont.woff
4088 ms
collect
12 ms
js
123 ms
www-player.css
8 ms
www-embed-player.js
28 ms
base.js
131 ms
ad_status.js
187 ms
qPVc89Xtqb-imYcu3PoxhWFQIHn6RU05s_zP8PhWsV0.js
106 ms
embed.js
39 ms
KFOmCnqEu92Fr1Mu4mxPKTU1Kg.ttf
46 ms
KFOlCnqEu92Fr1MmEU9fBBc9AMP6lQ.ttf
47 ms
id
84 ms
Create
103 ms
GenerateIT
17 ms
log_event
16 ms
vls.cz accessibility score
vls.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
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
vls.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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vls.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 Vls.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.
vls.cz
Open Graph data is detected on the main page of Vls. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: