5.1 sec in total
336 ms
4.5 sec
320 ms
Click here to check amazing Drestav content for Czech Republic. Otherwise, check out these important facts you probably never knew about drestav.cz
Dřevostavby HK-Dřestav s.r.o. – montáž a stavby montovaných dřevěných domů a dřevostaveb na klíč. Kvalitní nízkoenergetické rodinné domy ze dřeva, montované domy, chaty aj. stavíme jak v ČR, tak i v z...
Visit drestav.czWe analyzed Drestav.cz page load time and found that the first response time was 336 ms and then it took 4.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
drestav.cz performance score
name
value
score
weighting
Value4.2 s
19/100
10%
Value9.3 s
1/100
25%
Value6.9 s
33/100
10%
Value1,510 ms
14/100
30%
Value0.294
40/100
15%
Value9.5 s
30/100
10%
336 ms
964 ms
99 ms
196 ms
201 ms
Our browser made a total of 148 requests to load all elements on the main page. We found that 93% of them (138 requests) were addressed to the original Drestav.cz, 3% (4 requests) were made to Google-analytics.com and 1% (2 requests) were made to C.imedia.cz. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Drestav.cz.
Page size can be reduced by 595.5 kB (4%)
13.6 MB
13.0 MB
In fact, the total size of Drestav.cz main page is 13.6 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 12.9 MB which makes up the majority of the site volume.
Potential reduce by 35.0 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 7.9 kB, which is 18% 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 35.0 kB or 81% of the original size.
Potential reduce by 142.6 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. Drestav images are well optimized though.
Potential reduce by 356.7 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 356.7 kB or 67% of the original size.
Potential reduce by 61.2 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. Drestav.cz needs all CSS files to be minified and compressed as it can save up to 61.2 kB or 84% of the original size.
Number of requests can be reduced by 16 (11%)
143
127
The browser has sent 143 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Drestav. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.
drestav.cz
336 ms
www.drestav.cz
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zalozky.css
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drestav.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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
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
drestav.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
drestav.cz SEO score
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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Drestav.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 Drestav.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.
drestav.cz
Open Graph description is not detected on the main page of Drestav. 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: