Tools & Wizards About Us

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

coex.cz

Proměníme vaši představu v pořádnou webovou aplikaci | COex

Page Load Speed

2.4 sec in total

First Response

16 ms

Resources Loaded

1.8 sec

Page Rendered

636 ms

About Website

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

Vyvineme pro vás informační systém nebo e-shop na míru, vytvoříme rozsáhlou webovou aplikaci nebo integraci. Máme 15 let zkušeností a mnoho velkých projektů za sebou.

Visit coex.cz

Key Findings

We analyzed Coex.cz page load time and found that the first response time was 16 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

coex.cz performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

37/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value1,270 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value9.8 s

27/100

10%

Network Requests Diagram

coex.cz

16 ms

www.coex.cz

162 ms

0.CPtqr_1N.css

6 ms

Logo.CP8KbJKS.css

188 ms

Teaser.CdtPpIO9.css

218 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 70% of them (37 requests) were addressed to the original Coex.cz, 8% (4 requests) were made to Googletagmanager.com and 6% (3 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (795 ms) belongs to the original domain Coex.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 66.9 kB (14%)

Content Size

478.3 kB

After Optimization

411.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Coex.cz main page is 478.3 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. 40% of websites need less resources to load. Images take 357.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 43.0 kB

  • Original 55.1 kB
  • After minification 53.1 kB
  • After compression 12.2 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. 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 43.0 kB or 78% of the original size.

Image Optimization

-7%

Potential reduce by 23.9 kB

  • Original 357.7 kB
  • After minification 333.8 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. COex images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 35 B

  • Original 65.4 kB
  • After minification 65.4 kB
  • After compression 65.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 5 B

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.

Requests Breakdown

Number of requests can be reduced by 20 (41%)

Requests Now

49

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of COex. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

coex.cz accessibility score

97

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.

Best Practices

coex.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

High

Page has valid source maps

SEO Factors

coex.cz SEO score

100

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

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 Coex.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 Coex.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 data is detected on the main page of COex. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: