4.6 sec in total
1.3 sec
3 sec
293 ms
Click here to check amazing Cao content for Czech Republic. Otherwise, check out these important facts you probably never knew about cao.cz
Visit cao.czWe analyzed Cao.cz page load time and found that the first response time was 1.3 sec and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
cao.cz performance score
name
value
score
weighting
Value4.7 s
13/100
10%
Value19.4 s
0/100
25%
Value8.4 s
19/100
10%
Value480 ms
60/100
30%
Value0.023
100/100
15%
Value29.0 s
0/100
10%
1330 ms
89 ms
163 ms
164 ms
167 ms
Our browser made a total of 93 requests to load all elements on the main page. We found that 98% of them (91 requests) were addressed to the original Cao.cz, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Cao.cz.
Page size can be reduced by 870.4 kB (65%)
1.3 MB
474.9 kB
In fact, the total size of Cao.cz main page is 1.3 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. 55% of websites need less resources to load. Javascripts take 879.1 kB which makes up the majority of the site volume.
Potential reduce by 26.4 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 26.4 kB or 81% of the original size.
Potential reduce by 21.7 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. Cao images are well optimized though.
Potential reduce by 721.9 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 721.9 kB or 82% of the original size.
Potential reduce by 100.4 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. Cao.cz needs all CSS files to be minified and compressed as it can save up to 100.4 kB or 82% of the original size.
Number of requests can be reduced by 58 (64%)
90
32
The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cao. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 40 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.
cao.cz
1330 ms
screen.css
89 ms
screen.css
163 ms
liquid.css
164 ms
jquery.ui.base.css
167 ms
jquery.ui.core.css
175 ms
jquery.ui.resizable.css
176 ms
jquery.ui.selectable.css
176 ms
jquery.ui.autocomplete.css
240 ms
jquery.ui.button.css
245 ms
jquery.ui.dialog.css
245 ms
jquery.ui.tabs.css
260 ms
jquery.ui.slider.css
260 ms
jquery.ui.datepicker.css
263 ms
jquery.ui.tooltip.css
317 ms
jquery.ui.colors.blue.css
324 ms
forms.css
326 ms
highlight.css
345 ms
rating.css
347 ms
screen.css
351 ms
screen.css
397 ms
jquery.js
675 ms
hoverIntent.js
430 ms
notice.js
432 ms
cookie.js
437 ms
form.js
476 ms
blockUI.js
484 ms
hslides.js
516 ms
cycle.all.js
522 ms
color.js
525 ms
timers.js
554 ms
easing.js
565 ms
jcarousel.js
605 ms
lavalamp.js
609 ms
panelgallery.js
613 ms
dajax.core.js
631 ms
colorbox.js
571 ms
rating.js
563 ms
superfish.js
561 ms
supersubs.js
560 ms
swfobject.js
552 ms
json2.js
568 ms
DD_belatedPNG.js
589 ms
ui.core.js
553 ms
ui.widget.js
553 ms
ui.mouse.js
556 ms
ui.position.js
546 ms
ui.draggable.js
565 ms
ui.sortable.js
585 ms
ui.droppable.js
562 ms
ui.resizable.js
557 ms
ui.button.js
561 ms
ui.dialog.js
539 ms
ui.slider.js
561 ms
ui.tabs.js
577 ms
ui.autocomplete.js
563 ms
ui.datepicker.js
657 ms
ui.tooltip.js
532 ms
pdfobject.js
550 ms
dajaxice.core.js
608 ms
forms.js
558 ms
bg_body.jpg
609 ms
ga.js
30 ms
bg_home.jpg
340 ms
logo_text.gif
84 ms
prague.gif
111 ms
header.jpg
160 ms
banner_dod.png
110 ms
banner_prihlaska.png
169 ms
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394 ms
8f7aaab2c36a990b8cc6050fa2dfa532.png
414 ms
banner_planakci.png
492 ms
ui-bg_highlight-soft.png
398 ms
footer_bg.jpg
404 ms
footer_sep.jpg
421 ms
footer_email.jpg
456 ms
footer_tel.jpg
481 ms
border1.png
419 ms
border2.png
431 ms
loading.gif
449 ms
__utm.gif
23 ms
print.css
88 ms
cao.cz accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
Heading elements are not in a sequentially-descending order
cao.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
Missing source maps for large first-party JavaScript
cao.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
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 Cao.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 Cao.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.
cao.cz
Open Graph description is not detected on the main page of Cao. 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: