Tools & Wizards About Us
cvb.cz screenshot

Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

cvb.cz

Klimatizace, vzduchotechnika, ventilátory, tepelná čerpadla - CVB s.r.o.

Page Load Speed

2.3 sec in total

First Response

529 ms

Resources Loaded

1.6 sec

Page Rendered

134 ms

cvb.cz screenshot

About Website

Click here to check amazing CVB content. Otherwise, check out these important facts you probably never knew about cvb.cz

Prodej, montáž a servis klimatizace Acond, Toshiba, York, LG. Návrh, realizace a opravy po celé ČR. Tepelná čerpadla, vzduchotechnika, ventilátory.

Visit cvb.cz

Key Findings

We analyzed Cvb.cz page load time and found that the first response time was 529 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

cvb.cz performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

29/100

25%

SI (Speed Index)

Value2.7 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.034

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

cvb.cz

529 ms

www.css

110 ms

responsive.css

215 ms

css

35 ms

soc_03.png

217 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 75% of them (15 requests) were addressed to the original Cvb.cz, 20% (4 requests) were made to Fonts.gstatic.com and 5% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (883 ms) belongs to the original domain Cvb.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.6 kB (5%)

Content Size

501.8 kB

After Optimization

477.2 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Cvb.cz main page is 501.8 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. 15% of websites need less resources to load. Images take 484.0 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 5.1 kB

  • Original 6.9 kB
  • After minification 5.5 kB
  • After compression 1.8 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. This page needs HTML code to be minified as it can gain 1.4 kB, which is 20% 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 5.1 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 11.2 kB

  • Original 484.0 kB
  • After minification 472.9 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. CVB images are well optimized though.

CSS Optimization

-77%

Potential reduce by 8.4 kB

  • Original 10.9 kB
  • After minification 7.8 kB
  • After compression 2.5 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. Cvb.cz needs all CSS files to be minified and compressed as it can save up to 8.4 kB or 77% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

15

After Optimization

15

  • Images
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CVB. According to our analytics all requests are already optimized.

Network Requests Diagram

cvb.cz

cvb.cz

529 ms

www.css

www.css

110 ms

responsive.css

responsive.css

215 ms

css

css

35 ms

soc_03.png

soc_03.png

217 ms

soc_11.png

soc_11.png

218 ms

soc_05.png

soc_05.png

218 ms

soc_07.png

soc_07.png

216 ms

soc_09.png

soc_09.png

217 ms

bg_body.jpg

bg_body.jpg

318 ms

bg_head.png

bg_head.png

883 ms

cvb_logotype.png

cvb_logotype.png

213 ms

img_shop.png

img_shop.png

212 ms

img_ventilator.png

img_ventilator.png

213 ms

img_air.png

img_air.png

213 ms

img_contact.png

img_contact.png

424 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVs9pbCGPrQ.ttf

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVs9pbCGPrQ.ttf

19 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVtzpbCGPrQ.ttf

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVtzpbCGPrQ.ttf

24 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVvaorCGPrQ.ttf

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVvaorCGPrQ.ttf

30 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVuEorCGPrQ.ttf

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVuEorCGPrQ.ttf

33 ms

Accessibility Review

cvb.cz accessibility score

76

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

cvb.cz best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

cvb.cz SEO score

100

Search Engine Optimization Advices

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

High

Document uses legible font sizes

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 Cvb.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 Cvb.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

cvb.cz

Open Graph description is not detected on the main page of CVB. 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: