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cksl.cz screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

cksl.cz

Připravujeme | Český klub sběratelů lastur

Page Load Speed

3.9 sec in total

First Response

1.4 sec

Resources Loaded

2.1 sec

Page Rendered

468 ms

cksl.cz screenshot

About Website

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

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Key Findings

We analyzed Cksl.cz page load time and found that the first response time was 1.4 sec and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

cksl.cz performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

48/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

cksl.cz

1373 ms

style.min.css

185 ms

style.min.css

282 ms

autoptimize_single_cff4a50b569f9d814cfe56378d2d03f7.css

192 ms

autoptimize_single_4c4695550093f6ac60b62ce71d398760.css

193 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 Cksl.cz, 15% (3 requests) were made to Fonts.gstatic.com and 10% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Cksl.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 65.0 kB (20%)

Content Size

324.3 kB

After Optimization

259.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cksl.cz main page is 324.3 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. 40% of websites need less resources to load. Images take 144.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 51.7 kB

  • Original 64.7 kB
  • After minification 63.1 kB
  • After compression 13.0 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 51.7 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 144.1 kB
  • After minification 144.1 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. Cksl images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 5.1 kB

  • Original 58.1 kB
  • After minification 58.1 kB
  • After compression 53.0 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

-14%

Potential reduce by 8.2 kB

  • Original 57.5 kB
  • After minification 57.5 kB
  • After compression 49.3 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. Cksl.cz needs all CSS files to be minified and compressed as it can save up to 8.2 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (53%)

Requests Now

15

After Optimization

7

  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cksl. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cksl.cz

cksl.cz

1373 ms

style.min.css

style.min.css

185 ms

style.min.css

style.min.css

282 ms

autoptimize_single_cff4a50b569f9d814cfe56378d2d03f7.css

autoptimize_single_cff4a50b569f9d814cfe56378d2d03f7.css

192 ms

autoptimize_single_4c4695550093f6ac60b62ce71d398760.css

autoptimize_single_4c4695550093f6ac60b62ce71d398760.css

193 ms

css

css

21 ms

autoptimize_single_41a22f925b5918d0bfc57bceb1b3f06e.css

autoptimize_single_41a22f925b5918d0bfc57bceb1b3f06e.css

199 ms

css

css

37 ms

ytprefs.min.css

ytprefs.min.css

205 ms

jquery.min.js

jquery.min.js

280 ms

lazysizes.min.js

lazysizes.min.js

299 ms

autoptimize_single_ee50d75624117dc06c3de63b2fa5f447.css

autoptimize_single_ee50d75624117dc06c3de63b2fa5f447.css

300 ms

autoptimize_2dc3f3b97a430a3c4af1c3b2651e2df5.js

autoptimize_2dc3f3b97a430a3c4af1c3b2651e2df5.js

300 ms

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7g.ttf

6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7g.ttf

15 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwlxdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwlxdr.ttf

37 ms

sw-icon-font.woff

sw-icon-font.woff

102 ms

6xK1dSBYKcSV-LCoeQqfX1RYOo3qPZ7nsDc.ttf

6xK1dSBYKcSV-LCoeQqfX1RYOo3qPZ7nsDc.ttf

37 ms

Header_22.jpg

Header_22.jpg

100 ms

Brno-24-714x1024.jpg

Brno-24-714x1024.jpg

298 ms

Kontakt_predseda.jpg

Kontakt_predseda.jpg

96 ms

Accessibility Review

cksl.cz accessibility score

88

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.

Names and labels

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.

Impact

Issue

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

cksl.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

cksl.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 Cksl.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 Cksl.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

cksl.cz

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