4 sec in total
489 ms
3.4 sec
165 ms
Welcome to nasatrieda7b.estranky.cz homepage info - get ready to check Nasatrieda 7 B Estranky best content for Czech Republic right away, or after learning these important things about nasatrieda7b.estranky.cz
Stránka o 7.B
Visit nasatrieda7b.estranky.czWe analyzed Nasatrieda7b.estranky.cz page load time and found that the first response time was 489 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
nasatrieda7b.estranky.cz performance score
name
value
score
weighting
Value5.2 s
8/100
10%
Value6.7 s
7/100
25%
Value5.5 s
54/100
10%
Value570 ms
52/100
30%
Value0
100/100
15%
Value9.8 s
28/100
10%
489 ms
418 ms
535 ms
313 ms
227 ms
Our browser made a total of 32 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Nasatrieda7b.estranky.cz, 25% (8 requests) were made to Bbcdn.go.cz.bbelements.com and 22% (7 requests) were made to S3a.estranky.cz. The less responsive or slowest element that took the longest time to load (535 ms) relates to the external source S3c.estranky.cz.
Page size can be reduced by 316.0 kB (60%)
524.6 kB
208.6 kB
In fact, the total size of Nasatrieda7b.estranky.cz main page is 524.6 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. 25% of websites need less resources to load. Javascripts take 366.8 kB which makes up the majority of the site volume.
Potential reduce by 18.0 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 6.2 kB, which is 26% 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 18.0 kB or 77% of the original size.
Potential reduce by 37 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. Nasatrieda 7 B Estranky images are well optimized though.
Potential reduce by 237.3 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 237.3 kB or 65% of the original size.
Potential reduce by 60.7 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. Nasatrieda7b.estranky.cz needs all CSS files to be minified and compressed as it can save up to 60.7 kB or 81% of the original size.
Number of requests can be reduced by 20 (67%)
30
10
The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nasatrieda 7 B Estranky. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.
www.nasatrieda7b.estranky.cz
489 ms
d1000000020.css
418 ms
ui.js
535 ms
shifter.js
313 ms
bb_one2n.js
227 ms
fixed.js
212 ms
cookies.js
214 ms
bb_one2n.113.65.77.1.js
402 ms
analytics.js
48 ms
beacon.js
25 ms
bkg.jpg
106 ms
logo_1000000020.jpeg
320 ms
promolink-free.png
106 ms
collect
28 ms
bbnaut-lib-1.7.5.min.js
336 ms
486 ms
1000x100.html
212 ms
xgemius.js
321 ms
co
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b685275_2.png
399 ms
b685274_1.png
417 ms
1000x100_edgePreload.js
417 ms
fpdata.js
108 ms
lsget.html
238 ms
jquery.min.js
48 ms
edge.4.0.0.min.js
89 ms
1000x100_edge.js
314 ms
1000x100_edgeActions.js
210 ms
rexdot.js
117 ms
jquery.min.js
21 ms
edge.4.0.0.min.js
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1000x100_edge.js
300 ms
nasatrieda7b.estranky.cz accessibility score
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
Buttons do not have an accessible name
Form elements do not have associated labels
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
nasatrieda7b.estranky.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
Issues were logged in the Issues panel in Chrome Devtools
nasatrieda7b.estranky.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 Nasatrieda7b.estranky.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 Nasatrieda7b.estranky.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.
nasatrieda7b.estranky.cz
Open Graph description is not detected on the main page of Nasatrieda 7 B Estranky. 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: