Tools & Wizards About Us

Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

kela.cz

Kela - vše do kuchyně a koupelny - Kela.cz

Page Load Speed

3.6 sec in total

First Response

540 ms

Resources Loaded

2.9 sec

Page Rendered

185 ms

About Website

Click here to check amazing Kela content. Otherwise, check out these important facts you probably never knew about kela.cz

Kompletní sortiment do kuchyně a koupelny vše skladem, okamžitá expedice!

Visit kela.cz

Key Findings

We analyzed Kela.cz page load time and found that the first response time was 540 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

kela.cz performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value340 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0.031

100/100

15%

TTI (Time to Interactive)

Value7.4 s

48/100

10%

Network Requests Diagram

kela.cz

540 ms

www.kela.cz

948 ms

gtm.js

68 ms

style-common.min.css

767 ms

style-1561100723.min.css

440 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 91% of them (20 requests) were addressed to the original Kela.cz, 5% (1 request) were made to Googletagmanager.com and 5% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (948 ms) belongs to the original domain Kela.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 181.4 kB (49%)

Content Size

369.6 kB

After Optimization

188.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kela.cz main page is 369.6 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. 25% of websites need less resources to load. HTML takes 172.9 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 150.9 kB

  • Original 172.9 kB
  • After minification 113.1 kB
  • After compression 22.0 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 59.8 kB, which is 35% 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 150.9 kB or 87% of the original size.

Image Optimization

-7%

Potential reduce by 2.3 kB

  • Original 33.8 kB
  • After minification 31.4 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. Kela images are well optimized though.

JavaScript Optimization

-16%

Potential reduce by 16.8 kB

  • Original 104.8 kB
  • After minification 104.8 kB
  • After compression 88.0 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 16.8 kB or 16% of the original size.

CSS Optimization

-20%

Potential reduce by 11.4 kB

  • Original 58.1 kB
  • After minification 58.1 kB
  • After compression 46.7 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. Kela.cz needs all CSS files to be minified and compressed as it can save up to 11.4 kB or 20% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (67%)

Requests Now

18

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kela. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

kela.cz accessibility score

98

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

kela.cz best practices score

75

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

kela.cz SEO score

84

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

High

robots.txt is not valid

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

High

Tap targets are not sized appropriately

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 Kela.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 Kela.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 Kela. 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: