6 sec in total
871 ms
4.6 sec
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Click here to check amazing Udrzba content. Otherwise, check out these important facts you probably never knew about udrzba.cz
Jsme firma s více než 15 - letou tradicí, se zaměřením na oblast průmyslu, průmyslové výroby, údržby, povrchových ochran, ekologie a kovoobrábění. Našimi zákazníky jsou provozy průmyslové údržby, prov...
Visit udrzba.czWe analyzed Udrzba.cz page load time and found that the first response time was 871 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
udrzba.cz performance score
name
value
score
weighting
Value5.5 s
6/100
10%
Value14.0 s
0/100
25%
Value8.3 s
19/100
10%
Value1,230 ms
20/100
30%
Value0.497
16/100
15%
Value11.5 s
18/100
10%
871 ms
220 ms
330 ms
445 ms
332 ms
Our browser made a total of 73 requests to load all elements on the main page. We found that 71% of them (52 requests) were addressed to the original Udrzba.cz, 7% (5 requests) were made to Gstatic.com and 5% (4 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Udrzba.cz.
Page size can be reduced by 392.8 kB (8%)
4.8 MB
4.5 MB
In fact, the total size of Udrzba.cz main page is 4.8 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. 60% of websites need less resources to load. Images take 4.3 MB which makes up the majority of the site volume.
Potential reduce by 102.3 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. This page needs HTML code to be minified as it can gain 13.6 kB, which is 11% 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 102.3 kB or 84% of the original size.
Potential reduce by 286.5 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. Udrzba images are well optimized though.
Potential reduce by 3.1 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. This website has mostly compressed JavaScripts.
Potential reduce by 939 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. Udrzba.cz has all CSS files already compressed.
Number of requests can be reduced by 21 (32%)
66
45
The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Udrzba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
www.udrzba.cz
871 ms
colorbox.css
220 ms
global.css
330 ms
theme.css
445 ms
custom.css
332 ms
lang_1.js
331 ms
jquery-1.11.3.min.js
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all.js
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jquery.maskedinput.min-1.3.1.js
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jquery.colorbox-min.js
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jquery.cookie.js
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api.js
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js
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rc.js
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recaptcha__en.js
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js
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js
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analytics.js
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landing
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theme.png
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retargeting
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anchor
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asset_composer.js
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styles__ltr.css
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recaptcha__en.js
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udrzba.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-*] attributes do not match their roles
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
Heading elements are not in a sequentially-descending order
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
Image elements do not have [alt] attributes
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
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.
udrzba.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
udrzba.cz SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Udrzba.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 Udrzba.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.
udrzba.cz
Open Graph data is detected on the main page of Udrzba. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: