Tools & Wizards About Us
czretezy.cz screenshot

Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

czretezy.cz

ČZ Řetězy s.r.o. - Motorcycle, Industrial, Kart and Automotive chains

Page Load Speed

3.2 sec in total

First Response

729 ms

Resources Loaded

2.1 sec

Page Rendered

415 ms

czretezy.cz screenshot

About Website

Visit czretezy.cz now to see the best up-to-date Czretezy content and also check out these interesting facts you probably never knew about czretezy.cz

ČZ Řetězy s.r.o.

Visit czretezy.cz

Key Findings

We analyzed Czretezy.cz page load time and found that the first response time was 729 ms and then it took 2.5 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

czretezy.cz performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

91/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value1.8 s

100/100

10%

Network Requests Diagram

czretezy.cz

729 ms

style.css

100 ms

nav.css

197 ms

dropdowns.js

198 ms

nggallery.css

202 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 96% of them (25 requests) were addressed to the original Czretezy.cz, 4% (1 request) were made to Toplist.cz. The less responsive or slowest element that took the longest time to load (981 ms) belongs to the original domain Czretezy.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 108.2 kB (11%)

Content Size

1.0 MB

After Optimization

908.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Czretezy.cz main page is 1.0 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. 20% of websites need less resources to load. Images take 870.0 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 13.2 kB

  • Original 16.9 kB
  • After minification 16.0 kB
  • After compression 3.8 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 13.2 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 3.6 kB

  • Original 870.0 kB
  • After minification 866.4 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. Czretezy images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 79.2 kB

  • Original 114.4 kB
  • After minification 111.5 kB
  • After compression 35.2 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 79.2 kB or 69% of the original size.

CSS Optimization

-77%

Potential reduce by 12.2 kB

  • Original 15.8 kB
  • After minification 12.3 kB
  • After compression 3.6 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. Czretezy.cz needs all CSS files to be minified and compressed as it can save up to 12.2 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (28%)

Requests Now

25

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Czretezy. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

czretezy.cz

czretezy.cz

729 ms

style.css

style.css

100 ms

nav.css

nav.css

197 ms

dropdowns.js

dropdowns.js

198 ms

nggallery.css

nggallery.css

202 ms

shutter-reloaded.css

shutter-reloaded.css

204 ms

shutter-reloaded.js

shutter-reloaded.js

204 ms

jquery.js

jquery.js

301 ms

jquery.cycle.all.min.js

jquery.cycle.all.min.js

296 ms

ngg.slideshow.min.js

ngg.slideshow.min.js

295 ms

count.asp

count.asp

225 ms

bg.jpg

bg.jpg

104 ms

header.jpg

header.jpg

396 ms

cze.gif

cze.gif

100 ms

eng.gif

eng.gif

101 ms

bg-menu.gif

bg-menu.gif

103 ms

bg-menu-a.gif

bg-menu-a.gif

100 ms

rss-icon.gif

rss-icon.gif

195 ms

content.jpg

content.jpg

200 ms

vms2016.jpg

vms2016.jpg

202 ms

plakat_svitko_cz2.jpg

plakat_svitko_cz2.jpg

981 ms

pozorr.jpg

pozorr.jpg

200 ms

kolo.jpg

kolo.jpg

293 ms

prp.jpg

prp.jpg

324 ms

flogo2.jpg

flogo2.jpg

297 ms

footer.jpg

footer.jpg

302 ms

Accessibility Review

czretezy.cz accessibility score

82

Accessibility Issues

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

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

High

Links do not have a discernible name

Best Practices

czretezy.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

czretezy.cz SEO score

62

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

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Czretezy.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Czretezy.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

czretezy.cz

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