Report Summary

  • 57

    Performance

    Renders faster than
    74% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

cotea.cz

Ochrana přístupu - Cotea.cz

Page Load Speed

5.9 sec in total

First Response

480 ms

Resources Loaded

5 sec

Page Rendered

437 ms

cotea.cz screenshot

About Website

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

Ochrana přístupu, Cotea.cz

Visit cotea.cz

Key Findings

We analyzed Cotea.cz page load time and found that the first response time was 480 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

cotea.cz performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value8.8 s

16/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.8 s

67/100

10%

Network Requests Diagram

cotea.cz

480 ms

www.cotea.cz

1002 ms

custom_style.css_minify

495 ms

mainPageBanner.css_minify

353 ms

jquery-1.10.2.min.js

600 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 61% of them (56 requests) were addressed to the original Cotea.cz, 11% (10 requests) were made to Static.xx.fbcdn.net and 7% (6 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Cotea.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 655.4 kB (32%)

Content Size

2.0 MB

After Optimization

1.4 MB

In fact, the total size of Cotea.cz main page is 2.0 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. 60% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 37.0 kB

  • Original 46.7 kB
  • After minification 42.6 kB
  • After compression 9.7 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. 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 37.0 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 64.7 kB

  • Original 1.2 MB
  • After minification 1.1 MB

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. Cotea images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 537.6 kB

  • Original 788.9 kB
  • After minification 786.8 kB
  • After compression 251.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 537.6 kB or 68% of the original size.

CSS Optimization

-77%

Potential reduce by 16.1 kB

  • Original 20.9 kB
  • After minification 20.6 kB
  • After compression 4.8 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. Cotea.cz needs all CSS files to be minified and compressed as it can save up to 16.1 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (39%)

Requests Now

88

After Optimization

54

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cotea. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

cotea.cz accessibility score

95

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

cotea.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

cotea.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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cotea.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Cotea.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 Cotea. 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: