Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 77

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

zidlin.cz

Hosting Fleximo Solutions

Page Load Speed

4.5 sec in total

First Response

373 ms

Resources Loaded

3.9 sec

Page Rendered

247 ms

zidlin.cz screenshot

About Website

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

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Key Findings

We analyzed Zidlin.cz page load time and found that the first response time was 373 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

zidlin.cz performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.6 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.0 s

100/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value0.6 s

100/100

10%

Network Requests Diagram

zidlin.cz

373 ms

zidlin.cz

563 ms

www.zidlin.cz

581 ms

www.zidlin.cz

807 ms

all.css

146 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 76% of them (41 requests) were addressed to the original Zidlin.cz, 7% (4 requests) were made to Google-analytics.com and 6% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (992 ms) belongs to the original domain Zidlin.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 727.7 kB (62%)

Content Size

1.2 MB

After Optimization

442.7 kB

In fact, the total size of Zidlin.cz main page is 1.2 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. 45% of websites need less resources to load. Javascripts take 576.3 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 28.0 kB

  • Original 34.9 kB
  • After minification 26.5 kB
  • After compression 6.9 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 8.4 kB, which is 24% 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 28.0 kB or 80% of the original size.

Image Optimization

-4%

Potential reduce by 8.2 kB

  • Original 186.8 kB
  • After minification 178.6 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. Zidlin images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 375.2 kB

  • Original 576.3 kB
  • After minification 561.7 kB
  • After compression 201.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 375.2 kB or 65% of the original size.

CSS Optimization

-85%

Potential reduce by 316.3 kB

  • Original 372.5 kB
  • After minification 327.8 kB
  • After compression 56.2 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. Zidlin.cz needs all CSS files to be minified and compressed as it can save up to 316.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (52%)

Requests Now

44

After Optimization

21

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zidlin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zidlin.cz accessibility score

84

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

zidlin.cz best practices score

77

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

zidlin.cz SEO score

67

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zidlin.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Czech. Our system also found out that Zidlin.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 Zidlin. 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: