Tools & Wizards About Us
pvk.cz screenshot

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

pvk.cz

Pražské vodovody a kanalizace, a.s. - Pražské vodovody a kanalizace, a.s.

Page Load Speed

3.9 sec in total

First Response

328 ms

Resources Loaded

3.4 sec

Page Rendered

185 ms

pvk.cz screenshot

About Website

Click here to check amazing Pvk content for Czech Republic. Otherwise, check out these important facts you probably never knew about pvk.cz

Pražské vodovody a kanalizace, a.s.

Visit pvk.cz

Key Findings

We analyzed Pvk.cz page load time and found that the first response time was 328 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

pvk.cz performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value8.1 s

20/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.1 s

87/100

10%

Network Requests Diagram

pvk.cz

328 ms

pvk.cz

383 ms

www.pvk.cz

479 ms

www.pvk.cz

423 ms

918184-20240526-174522.js

869 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 91% of them (31 requests) were addressed to the original Pvk.cz, 6% (2 requests) were made to Matomo.veolia.cz and 3% (1 request) were made to Cmp.vizus.cz. The less responsive or slowest element that took the longest time to load (869 ms) relates to the external source Cmp.vizus.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 90.2 kB (9%)

Content Size

1.0 MB

After Optimization

927.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pvk.cz main page is 1.0 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. 15% of websites need less resources to load. Images take 737.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 13.0 kB

  • Original 17.9 kB
  • After minification 15.5 kB
  • After compression 4.9 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 2.4 kB, which is 13% 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 13.0 kB or 73% of the original size.

Image Optimization

-10%

Potential reduce by 74.1 kB

  • Original 737.0 kB
  • After minification 662.9 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. Pvk images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 56 B

  • Original 146.1 kB
  • After minification 146.1 kB
  • After compression 146.1 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.

CSS Optimization

-3%

Potential reduce by 3.1 kB

  • Original 116.4 kB
  • After minification 116.4 kB
  • After compression 113.3 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. Pvk.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 5 (17%)

Requests Now

30

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pvk. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

pvk.cz

pvk.cz

328 ms

pvk.cz

pvk.cz

383 ms

www.pvk.cz

www.pvk.cz

479 ms

www.pvk.cz

www.pvk.cz

423 ms

918184-20240526-174522.js

918184-20240526-174522.js

869 ms

web-d1d16796b3a6d7f21067d51fc0f8b4ab.css

web-d1d16796b3a6d7f21067d51fc0f8b4ab.css

334 ms

web-d45e744d555b6ae841ad782cbb3d4dd3.js

web-d45e744d555b6ae841ad782cbb3d4dd3.js

563 ms

matomo.js

matomo.js

582 ms

1.png

1.png

98 ms

search-submit.png

search-submit.png

94 ms

arrow-red.png

arrow-red.png

186 ms

250298_60_1204458.jpg

250298_60_1204458.jpg

387 ms

slider-bg.png

slider-bg.png

465 ms

250299_60_1204470.jpg

250299_60_1204470.jpg

466 ms

014732_60_215902.jpg

014732_60_215902.jpg

552 ms

231501_60_1182419.jpg

231501_60_1182419.jpg

370 ms

slider-corner.png

slider-corner.png

293 ms

hp-boxes-bg-01.png

hp-boxes-bg-01.png

390 ms

arrow-big-blue.png

arrow-big-blue.png

463 ms

arrow-big-white.png

arrow-big-white.png

484 ms

264362_56_1226068.jpg

264362_56_1226068.jpg

677 ms

264353_56_1225936.jpg

264353_56_1225936.jpg

647 ms

250360_56_1205092.jpg

250360_56_1205092.jpg

557 ms

231017_56_1177380.jpg

231017_56_1177380.jpg

561 ms

233204_56_1188230.jpg

233204_56_1188230.jpg

581 ms

224280_56_1106999.jpg

224280_56_1106999.jpg

645 ms

phone-ico.png

phone-ico.png

653 ms

fn-bg.png

fn-bg.png

654 ms

fn-map.png

fn-map.png

685 ms

fn-flag.png

fn-flag.png

737 ms

fn-li.png

fn-li.png

739 ms

logo-veolia-voda.png

logo-veolia-voda.png

746 ms

matomo.php

matomo.php

194 ms

print.css

print.css

98 ms

Accessibility Review

pvk.cz accessibility score

93

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

pvk.cz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

pvk.cz SEO score

91

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pvk.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Pvk.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

pvk.cz

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