5.5 sec in total
422 ms
4.5 sec
600 ms
Click here to check amazing Zsstankov content. Otherwise, check out these important facts you probably never knew about zsstankov.cz
Oficiální stránky Základní školy Staňkov
Visit zsstankov.czWe analyzed Zsstankov.cz page load time and found that the first response time was 422 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
zsstankov.cz performance score
name
value
score
weighting
Value6.3 s
3/100
10%
Value7.9 s
3/100
25%
Value9.3 s
13/100
10%
Value270 ms
82/100
30%
Value0.125
83/100
15%
Value13.8 s
10/100
10%
422 ms
500 ms
1187 ms
341 ms
333 ms
Our browser made a total of 85 requests to load all elements on the main page. We found that 68% of them (58 requests) were addressed to the original Zsstankov.cz, 7% (6 requests) were made to Fonts.gstatic.com and 5% (4 requests) were made to Calendar.google.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Zsstankov.cz.
Page size can be reduced by 230.5 kB (50%)
459.8 kB
229.3 kB
In fact, the total size of Zsstankov.cz main page is 459.8 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. Javascripts take 342.8 kB which makes up the majority of the site volume.
Potential reduce by 89.0 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 23.1 kB, which is 21% 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 89.0 kB or 82% of the original size.
Potential reduce by 0 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. Zsstankov images are well optimized though.
Potential reduce by 141.3 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 141.3 kB or 41% of the original size.
Potential reduce by 195 B
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. Zsstankov.cz needs all CSS files to be minified and compressed as it can save up to 195 B or 20% of the original size.
Number of requests can be reduced by 26 (36%)
72
46
The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zsstankov. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
zsstankov.cz
422 ms
zsstankov.cz
500 ms
www.zsstankov.cz
1187 ms
style.css
341 ms
highslide.css
333 ms
swiper.4.5.0.min.css
340 ms
banners.css
333 ms
mmenu.css
336 ms
cookies_consent.js
338 ms
funkce.js
443 ms
highslide-full.packed.js
556 ms
highslide.cfg.js.php
631 ms
swiper.4.5.0.min.js
561 ms
jquery.min.js
561 ms
jquery.migrate.min.js
447 ms
module_variables.js.php
808 ms
cookies_widget.js
560 ms
scripts.min.js
667 ms
swiperInit.js
668 ms
popper.min.js
43 ms
bootstrap.min.js
44 ms
mmenu.polyfills.js
669 ms
mmenu.js
674 ms
mhead.js
741 ms
css2
40 ms
css
35 ms
crest.svg
118 ms
evt_image.php
432 ms
evt_image.php
415 ms
evt_image.php
425 ms
evt_image.php
431 ms
evt_image.php
350 ms
evt_image.php
424 ms
evt_image.php
657 ms
evt_image.php
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evt_image.php
731 ms
evt_image.php
726 ms
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banner_logo_cs.png
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banner_logo_small.png
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img-20231031-wa0000.jpg
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iso2024-06-28T08:40:00
98 ms
embed
376 ms
embed
250 ms
parlament.svg
1158 ms
skola-online.svg
1203 ms
google.svg
1233 ms
banner_mobile_app_right_bg_big.png
1272 ms
banner_mobile_app_main_bg.png
1314 ms
memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVQ.woff
87 ms
memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVQ.woff
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fa-regular-400.woff
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memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0RkyFjWV4exg.woff
98 ms
zoomin.cur
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JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCtr6Ew9.woff
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ts.php
17 ms
js
51 ms
rs=ABFko3_9Nfg9Pw2yr2vHNJidcMfgbsOk2g
10 ms
m=embed
20 ms
client.js
48 ms
cb=gapi.loaded_0
11 ms
logo-plus.png
25 ms
googlelogo_color_46x16dp.png
29 ms
events
78 ms
events
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events
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events
65 ms
rounded-white.png
113 ms
zoomout.cur
112 ms
loader.white.gif
112 ms
zsstankov.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
<frame> or <iframe> elements do not have a title
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
zsstankov.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
zsstankov.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zsstankov.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 Zsstankov.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.
zsstankov.cz
Open Graph data is detected on the main page of Zsstankov. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: