Tools & Wizards About Us
cz.all.biz screenshot

Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

cz.all.biz

Obchodní portál Česko > Obchodničit po novém na https://cz.all.biz

Page Load Speed

2 sec in total

First Response

203 ms

Resources Loaded

1.7 sec

Page Rendered

63 ms

cz.all.biz screenshot

About Website

Click here to check amazing Cz All content for Ukraine. Otherwise, check out these important facts you probably never knew about cz.all.biz

Allbiz Česko - Obchodní portál města Česko: zboží, služby, firmy, dodavatelé, inzeráty, klasifikátor zboží. Obchoduj po novém na https://cz.all.biz! Registrace zdarma.

Visit cz.all.biz

Key Findings

We analyzed Cz.all.biz page load time and found that the first response time was 203 ms and then it took 1.8 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

cz.all.biz performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

22/100

25%

SI (Speed Index)

Value7.1 s

30/100

10%

TBT (Total Blocking Time)

Value2,910 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value13.1 s

12/100

10%

Network Requests Diagram

cz.all.biz

203 ms

cz.all.biz

552 ms

FontAwesome.css

49 ms

core.css

38 ms

allbiz.css

49 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 5% of them (3 requests) were addressed to the original Cz.all.biz, 75% (44 requests) were made to S.all.biz and 3% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (564 ms) relates to the external source Count.all.biz.

Page Optimization Overview & Recommendations

Page size can be reduced by 112.6 kB (10%)

Content Size

1.1 MB

After Optimization

994.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cz.all.biz main page is 1.1 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. 40% of websites need less resources to load. Javascripts take 456.8 kB which makes up the majority of the site volume.

HTML Optimization

-42%

Potential reduce by 108.7 kB

  • Original 256.0 kB
  • After minification 256.0 kB
  • After compression 147.3 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 108.7 kB or 42% of the original size.

Image Optimization

-2%

Potential reduce by 2.3 kB

  • Original 132.8 kB
  • After minification 130.4 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. Cz All images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 1.6 kB

  • Original 456.8 kB
  • After minification 456.8 kB
  • After compression 455.3 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

-0%

Potential reduce by 0 B

  • Original 261.2 kB
  • After minification 261.2 kB
  • After compression 261.2 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. Cz.all.biz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 13 (23%)

Requests Now

56

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cz All. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

cz.all.biz

cz.all.biz

203 ms

cz.all.biz

cz.all.biz

552 ms

FontAwesome.css

FontAwesome.css

49 ms

core.css

core.css

38 ms

allbiz.css

allbiz.css

49 ms

adsbygoogle.js

adsbygoogle.js

192 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

36 ms

_nd_common_.js

_nd_common_.js

45 ms

analytics.js

analytics.js

117 ms

hit;all-biz

hit;all-biz

553 ms

site_counter

site_counter

564 ms

old_browser

old_browser

391 ms

count_items

count_items

504 ms

allbiz-logo-new.svg

allbiz-logo-new.svg

86 ms

icon-arrow-down.svg

icon-arrow-down.svg

82 ms

flags_15.png

flags_15.png

84 ms

preloader.gif

preloader.gif

83 ms

icon-cart.svg

icon-cart.svg

83 ms

icon-search.svg

icon-search.svg

92 ms

280.jpg

280.jpg

94 ms

290.jpg

290.jpg

93 ms

150.jpg

150.jpg

96 ms

310.jpg

310.jpg

96 ms

130.jpg

130.jpg

92 ms

140.jpg

140.jpg

106 ms

50.jpg

50.jpg

105 ms

330.jpg

330.jpg

106 ms

110.jpg

110.jpg

105 ms

340.jpg

340.jpg

110 ms

10.jpg

10.jpg

105 ms

80.jpg

80.jpg

114 ms

210.jpg

210.jpg

113 ms

90.jpg

90.jpg

115 ms

60.jpg

60.jpg

116 ms

150.jpg

150.jpg

114 ms

590.jpg

590.jpg

117 ms

280.jpg

280.jpg

121 ms

210.jpg

210.jpg

122 ms

110.jpg

110.jpg

122 ms

200.jpg

200.jpg

129 ms

310.jpg

310.jpg

130 ms

600.jpg

600.jpg

129 ms

10.jpg

10.jpg

130 ms

130.jpg

130.jpg

129 ms

340.jpg

340.jpg

131 ms

140.jpg

140.jpg

136 ms

160.jpg

160.jpg

137 ms

380.jpg

380.jpg

168 ms

100.jpg

100.jpg

139 ms

collect

collect

66 ms

show_ads_impl.js

show_ads_impl.js

209 ms

form-home.svg

form-home.svg

89 ms

catolog_icon.svg

catolog_icon.svg

60 ms

cart.svg

cart.svg

91 ms

collect

collect

29 ms

js

js

49 ms

ga-audiences

ga-audiences

50 ms

zrt_lookup.html

zrt_lookup.html

24 ms

ads

ads

452 ms

Accessibility Review

cz.all.biz accessibility score

76

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.

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

Image elements do not have [alt] attributes

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

cz.all.biz 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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

cz.all.biz SEO score

92

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Cz.all.biz 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 Cz.all.biz 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

cz.all.biz

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