Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

cznet.cz

Cznet.cz | Úvod

Page Load Speed

2.2 sec in total

First Response

332 ms

Resources Loaded

1.7 sec

Page Rendered

234 ms

cznet.cz screenshot

About Website

Welcome to cznet.cz homepage info - get ready to check Cznet best content for Czech Republic right away, or after learning these important things about cznet.cz

Visit cznet.cz

Key Findings

We analyzed Cznet.cz page load time and found that the first response time was 332 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

cznet.cz performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value16.3 s

0/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value230 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.084

93/100

15%

TTI (Time to Interactive)

Value15.2 s

7/100

10%

Network Requests Diagram

cznet.cz

332 ms

comp1011-1250.css

223 ms

logom.png

322 ms

triple_tv.jpg

330 ms

triple_hsi.jpg

324 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that all of those requests were addressed to Cznet.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Cznet.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 253.3 kB (26%)

Content Size

968.6 kB

After Optimization

715.3 kB

In fact, the total size of Cznet.cz main page is 968.6 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 922.3 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 11.5 kB

  • Original 14.2 kB
  • After minification 12.4 kB
  • After compression 2.7 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 1.7 kB, which is 12% 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 11.5 kB or 81% of the original size.

Image Optimization

-23%

Potential reduce by 214.4 kB

  • Original 922.3 kB
  • After minification 707.9 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. Obviously, Cznet needs image optimization as it can save up to 214.4 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-85%

Potential reduce by 27.4 kB

  • Original 32.1 kB
  • After minification 28.1 kB
  • After compression 4.7 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. Cznet.cz needs all CSS files to be minified and compressed as it can save up to 27.4 kB or 85% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cznet. According to our analytics all requests are already optimized.

Accessibility Review

cznet.cz accessibility score

90

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

cznet.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

cznet.cz SEO score

82

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

    CS

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cznet.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 Cznet.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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