Access drestav.cz. Úsporné a moderní dřevostavby | HK – Dřestav

drestav.cz screenshot

30

Performance

Renders faster than
50% of other websites
96

Accessibility

Visual factors better than
that of 88% of websites
75

Best Practices

More advanced features
available than in
35% of websites
96

SEO

Google-friendlier than
90% of websites

First Response

515 ms

Resources Loaded

3.5 sec

Page Rendered

2 sec

drestav.cz screenshot

About Website

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.cz

Key Findings

We analyzed Drestav.cz page load time and found that the first response time was 515 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value10.1 s

0/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.163

72/100

15%

TTI (Time to Interactive)

Value10.5 s

23/100

10%

drestav.cz

515 ms

drestav.cz

1029 ms

css2

35 ms

style.css

213 ms

api.js

37 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 92% of them (73 requests) were addressed to the original Drestav.cz, 3% (2 requests) were made to Googletagmanager.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Drestav.cz.

Content Size

7.0 MB

After Optimization

6.8 MB

In fact, the total size of Drestav.cz main page is 7.0 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 6.3 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 117.8 kB

Original 147.6 kB
After minification 141.9 kB
After compression 29.8 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 117.8 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 6.3 MB
After minification 6.3 MB

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.

JavaScript Optimization

-8%

Potential reduce by 38.4 kB

Original 479.8 kB
After minification 479.8 kB
After compression 441.4 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.

Requests Now

77

After Optimization

62

The browser has sent 77 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 16 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

Low

No form fields have multiple labels

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

CS
Language Claimed

CS
Encoding

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.

Social Sharing Optimization

drestav.cz

Open Graph data is detected on the main page of Drestav. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: