Tools & Wizards About Us
chemickauprava.cz screenshot

Report Summary

  • 87

    Performance

    Renders faster than
    90% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

chemickauprava.cz

Úprava bazénové vody

Page Load Speed

4.8 sec in total

First Response

1.2 sec

Resources Loaded

3.4 sec

Page Rendered

272 ms

chemickauprava.cz screenshot

About Website

Visit chemickauprava.cz now to see the best up-to-date Chemickauprava content and also check out these interesting facts you probably never knew about chemickauprava.cz

Chemická úprava bazénové vody je nedílnou součástí provozu každého rodinného bazénu. Dávkování bazénové chemie pomocí dávkovačů do bazénu ušetří čas.

Visit chemickauprava.cz

Key Findings

We analyzed Chemickauprava.cz page load time and found that the first response time was 1.2 sec and then it took 3.6 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

chemickauprava.cz performance score

87

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

53/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value4.0 s

81/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

Network Requests Diagram

www.chemickauprava.cz

1202 ms

style.css

119 ms

comment-reply.min.js

231 ms

style.css

355 ms

css

26 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 73% of them (8 requests) were addressed to the original Chemickauprava.cz, 18% (2 requests) were made to Google-analytics.com and 9% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Chemickauprava.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 63.6 kB (9%)

Content Size

676.3 kB

After Optimization

612.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemickauprava.cz main page is 676.3 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 584.0 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 5.4 kB

  • Original 8.5 kB
  • After minification 7.7 kB
  • After compression 3.1 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 5.4 kB or 64% of the original size.

Image Optimization

-0%

Potential reduce by 2.3 kB

  • Original 584.0 kB
  • After minification 581.7 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. Chemickauprava images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 395 B

  • Original 17.9 kB
  • After minification 17.9 kB
  • After compression 17.5 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

-84%

Potential reduce by 55.5 kB

  • Original 65.8 kB
  • After minification 48.7 kB
  • After compression 10.3 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. Chemickauprava.cz needs all CSS files to be minified and compressed as it can save up to 55.5 kB or 84% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

10

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemickauprava. According to our analytics all requests are already optimized.

Network Requests Diagram

www.chemickauprava.cz

www.chemickauprava.cz

1202 ms

style.css

style.css

119 ms

comment-reply.min.js

comment-reply.min.js

231 ms

style.css

style.css

355 ms

css

css

26 ms

ga.js

ga.js

28 ms

1200-blur.png

1200-blur.png

361 ms

www.chemickauprava.cz

www.chemickauprava.cz

189 ms

Automatika-bazenove-chemie.jpg

Automatika-bazenove-chemie.jpg

352 ms

Asin-Aqua-profi.png

Asin-Aqua-profi.png

1062 ms

__utm.gif

__utm.gif

47 ms

Accessibility Review

chemickauprava.cz accessibility score

100

Accessibility Issues

Best Practices

chemickauprava.cz best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

chemickauprava.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 Chemickauprava.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 Chemickauprava.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

chemickauprava.cz

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