Tools & Wizards About Us
kvalitni-tepelna-cerpadla.cz screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

kvalitni-tepelna-cerpadla.cz

Kvalitní tepelná čerpadla | Vaillant

Page Load Speed

8.6 sec in total

First Response

489 ms

Resources Loaded

7.3 sec

Page Rendered

817 ms

kvalitni-tepelna-cerpadla.cz screenshot

About Website

Visit kvalitni-tepelna-cerpadla.cz now to see the best up-to-date Kvalitni Tepelna Cerpadla content and also check out these interesting facts you probably never knew about kvalitni-tepelna-cerpadla.cz

Dodáváme tepelná čerpadla Vaillant vzduch/voda a země/voda. S nabídkou tepelných čerpadel zajišťujeme služby v oblasti projekce a kompletní instalace.

Visit kvalitni-tepelna-cerpadla.cz

Key Findings

We analyzed Kvalitni-tepelna-cerpadla.cz page load time and found that the first response time was 489 ms and then it took 8.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

kvalitni-tepelna-cerpadla.cz performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

52/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value520 ms

56/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value18.0 s

3/100

10%

Network Requests Diagram

kvalitni-tepelna-cerpadla.cz

489 ms

971 ms

eb16754db774.js

558 ms

script.min.js

2869 ms

style.min.css

2145 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Kvalitni-tepelna-cerpadla.cz, 91% (30 requests) were made to Vaillant.cz and 3% (1 request) were made to Cdn.consentmanager.net. The less responsive or slowest element that took the longest time to load (5.2 sec) relates to the external source Vaillant.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (25%)

Content Size

5.8 MB

After Optimization

4.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kvalitni-tepelna-cerpadla.cz main page is 5.8 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. 25% of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 385.5 kB

  • Original 512.6 kB
  • After minification 512.4 kB
  • After compression 127.2 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 385.5 kB or 75% of the original size.

Image Optimization

-27%

Potential reduce by 1.1 MB

  • Original 3.9 MB
  • After minification 2.9 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. Obviously, Kvalitni Tepelna Cerpadla needs image optimization as it can save up to 1.1 MB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 1.3 MB
  • After minification 1.3 MB
  • After compression 1.3 MB

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.

CSS Optimization

-1%

Potential reduce by 587 B

  • Original 82.2 kB
  • After minification 82.2 kB
  • After compression 81.6 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. Kvalitni-tepelna-cerpadla.cz has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

27

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kvalitni Tepelna Cerpadla. According to our analytics all requests are already optimized.

Network Requests Diagram

kvalitni-tepelna-cerpadla.cz

kvalitni-tepelna-cerpadla.cz

489 ms

971 ms

eb16754db774.js

eb16754db774.js

558 ms

script.min.js

script.min.js

2869 ms

style.min.css

style.min.css

2145 ms

gtm.js

gtm.js

76 ms

logo-header-mobile.svg

logo-header-mobile.svg

160 ms

vaillant-logo-272x72-1888261_1.png

vaillant-logo-272x72-1888261_1.png

341 ms

HP23-312684_01_image_640w_274h.webp

HP23-312684_01_image_640w_274h.webp

424 ms

HP21-311037_01_image_640w_274h.webp

HP21-311037_01_image_640w_274h.webp

494 ms

Professionals20-409310_01.eps_image_640w_274h.jpg

Professionals20-409310_01.eps_image_640w_274h.jpg

559 ms

PEOPLE18-45513_02.eps_image_640w_274h.jpg

PEOPLE18-45513_02.eps_image_640w_274h.jpg

504 ms

231214-vaillant-150-teaser-module-eng_image_640w_274h.jpg

231214-vaillant-150-teaser-module-eng_image_640w_274h.jpg

728 ms

google_chrome.svg

google_chrome.svg

655 ms

microsoft_edge.svg

microsoft_edge.svg

678 ms

mozilla_firefox.svg

mozilla_firefox.svg

778 ms

HP23-912511_01.png_image_640w_480h.png

HP23-912511_01.png_image_640w_480h.png

1084 ms

HP21-311037_01.eps_image_640w_480h.png

HP21-311037_01.eps_image_640w_480h.png

2481 ms

HP23-912520_01.png_image_640w_480h.png

HP23-912520_01.png_image_640w_480h.png

1117 ms

HP17-34620_02.eps_image_640w_480h.png

HP17-34620_02.eps_image_640w_480h.png

1696 ms

HP23-912631_01.png_image_640w_480h.png

HP23-912631_01.png_image_640w_480h.png

1355 ms

HP14-32158_02.eps_image_640w_480h.png

HP14-32158_02.eps_image_640w_480h.png

1697 ms

HP23-912630_01.png_image_640w_480h.png

HP23-912630_01.png_image_640w_480h.png

1552 ms

HP16-33816_03.eps_image_640w_480h.png

HP16-33816_03.eps_image_640w_480h.png

1995 ms

WHBC23-912600_01.png_image_640w_480h.png

WHBC23-912600_01.png_image_640w_480h.png

2150 ms

HP16-34182_01.eps_image_640w_480h.png

HP16-34182_01.eps_image_640w_480h.png

5178 ms

STORAGE23-912507_01.png_image_640w_480h.png

STORAGE23-912507_01.png_image_640w_480h.png

1902 ms

STORAGE18-35828_01.eps_image_640w_480h.png

STORAGE18-35828_01.eps_image_640w_480h.png

3708 ms

VAI-Logo-SCREEN_Inverted.svg

VAI-Logo-SCREEN_Inverted.svg

2175 ms

Vaillant16-Book.woff

Vaillant16-Book.woff

875 ms

Vaillant16-Light.woff

Vaillant16-Light.woff

655 ms

Vaillant16-Demi.woff

Vaillant16-Demi.woff

889 ms

Vaillant16-Heavy.woff

Vaillant16-Heavy.woff

840 ms

Accessibility Review

kvalitni-tepelna-cerpadla.cz accessibility score

96

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

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

kvalitni-tepelna-cerpadla.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

General

Impact

Issue

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

kvalitni-tepelna-cerpadla.cz SEO score

93

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 Kvalitni-tepelna-cerpadla.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 Kvalitni-tepelna-cerpadla.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

kvalitni-tepelna-cerpadla.cz

Open Graph description is not detected on the main page of Kvalitni Tepelna Cerpadla. 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: