2.5 sec in total
412 ms
1.9 sec
162 ms
Welcome to video-zumba.cz homepage info - get ready to check Video Zumba best content right away, or after learning these important things about video-zumba.cz
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Visit video-zumba.czWe analyzed Video-zumba.cz page load time and found that the first response time was 412 ms and then it took 2.1 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.
video-zumba.cz performance score
name
value
score
weighting
Value5.1 s
9/100
10%
Value6.8 s
7/100
25%
Value7.4 s
27/100
10%
Value390 ms
69/100
30%
Value0.004
100/100
15%
Value14.4 s
9/100
10%
412 ms
109 ms
535 ms
104 ms
225 ms
Our browser made a total of 49 requests to load all elements on the main page. We found that 53% of them (26 requests) were addressed to the original Video-zumba.cz, 12% (6 requests) were made to Static.xx.fbcdn.net and 6% (3 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (544 ms) belongs to the original domain Video-zumba.cz.
Page size can be reduced by 423.1 kB (63%)
675.5 kB
252.4 kB
In fact, the total size of Video-zumba.cz main page is 675.5 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. 55% of websites need less resources to load. CSS take 262.6 kB which makes up the majority of the site volume.
Potential reduce by 13.3 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 13.3 kB or 72% of the original size.
Potential reduce by 44.9 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, Video Zumba needs image optimization as it can save up to 44.9 kB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 147.1 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 147.1 kB or 61% of the original size.
Potential reduce by 217.8 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. Video-zumba.cz needs all CSS files to be minified and compressed as it can save up to 217.8 kB or 83% of the original size.
Number of requests can be reduced by 17 (41%)
41
24
The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Video Zumba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
video-zumba.cz
412 ms
Default.asp
109 ms
Default.asp
535 ms
Common.asp
104 ms
DVDVideo.css
225 ms
Common.js
205 ms
GetElementsByClassName.js
213 ms
FBObjectValidation.js
211 ms
GoogleAnalytics_H1.js
214 ms
103 ms
108 ms
118 ms
115 ms
VqBtZwpnH4M
125 ms
HGxRDLTzRvk
219 ms
s6HfhMTrvNI
238 ms
Background.png
124 ms
CentrumTance.png
438 ms
MainMenuLeft.png
122 ms
MainMenuCenter.png
114 ms
MainMenuRight.png
238 ms
ContentBackground.jpg
544 ms
ContentHeader.png
260 ms
ContentBackground.png
261 ms
HeadingButton.png
257 ms
IconFacebook.png
440 ms
IconTanecCz.png
440 ms
FooterLogo.png
436 ms
all.js
23 ms
ContentFooter.png
426 ms
ga.js
50 ms
52 ms
ping
34 ms
__utm.gif
25 ms
xd_arbiter.php
25 ms
xd_arbiter.php
32 ms
like_box.php
35 ms
www-embed-player-vflRGs1ko.css
97 ms
www-embed-player.js
118 ms
base.js
188 ms
kyEKgjk51ZE.css
17 ms
FAHeNGXgPup.js
20 ms
hHAUS9q05ns.js
37 ms
1bNoFZUdlYZ.js
36 ms
I6-MnjEovm5.js
48 ms
pQrUxxo5oQp.js
48 ms
Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js
56 ms
ad_status.js
136 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
105 ms
video-zumba.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
Links do not have a discernible name
video-zumba.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
video-zumba.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 Video-zumba.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 Video-zumba.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.
video-zumba.cz
Open Graph description is not detected on the main page of Video Zumba. 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: