Report Summary

  • 54

    Performance

    Renders faster than
    72% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

clk.estranky.cz

www.clk.estranky.cz

Page Load Speed

10.7 sec in total

First Response

997 ms

Resources Loaded

9.5 sec

Page Rendered

187 ms

clk.estranky.cz screenshot

About Website

Visit clk.estranky.cz now to see the best up-to-date Clk Estranky content for Czech Republic and also check out these interesting facts you probably never knew about clk.estranky.cz

Visit clk.estranky.cz

Key Findings

We analyzed Clk.estranky.cz page load time and found that the first response time was 997 ms and then it took 9.7 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

clk.estranky.cz performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value180 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.7 s

45/100

10%

Network Requests Diagram

www.clk.estranky.cz

997 ms

d1000000011.css

420 ms

ui.js

537 ms

analytics.js

32 ms

body.gif

107 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 21% of them (4 requests) were addressed to the original Clk.estranky.cz, 42% (8 requests) were made to S3a.estranky.cz and 11% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (997 ms) belongs to the original domain Clk.estranky.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 239.9 kB (71%)

Content Size

339.5 kB

After Optimization

99.6 kB

In fact, the total size of Clk.estranky.cz main page is 339.5 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. Javascripts take 239.1 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 14.4 kB

  • Original 18.6 kB
  • After minification 12.9 kB
  • After compression 4.2 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. This page needs HTML code to be minified as it can gain 5.8 kB, which is 31% 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 14.4 kB or 77% of the original size.

Image Optimization

-8%

Potential reduce by 1.6 kB

  • Original 20.2 kB
  • After minification 18.7 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. Clk Estranky images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 174.6 kB

  • Original 239.1 kB
  • After minification 239.0 kB
  • After compression 64.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 174.6 kB or 73% of the original size.

CSS Optimization

-80%

Potential reduce by 49.3 kB

  • Original 61.5 kB
  • After minification 60.9 kB
  • After compression 12.3 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. Clk.estranky.cz needs all CSS files to be minified and compressed as it can save up to 49.3 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (56%)

Requests Now

18

After Optimization

8

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clk Estranky. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

clk.estranky.cz accessibility score

76

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

clk.estranky.cz best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

clk.estranky.cz SEO score

80

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

High

Tap targets are not sized appropriately

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 Clk.estranky.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 Clk.estranky.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

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