Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

katedrala.cz

Anonymizer | www.katedrala.cz

Page Load Speed

5 sec in total

First Response

334 ms

Resources Loaded

4.1 sec

Page Rendered

513 ms

katedrala.cz screenshot

About Website

Click here to check amazing Katedrala content for Russia. Otherwise, check out these important facts you probably never knew about katedrala.cz

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Key Findings

We analyzed Katedrala.cz page load time and found that the first response time was 334 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

katedrala.cz performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value6.3 s

41/100

10%

TBT (Total Blocking Time)

Value220 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.8 s

67/100

10%

Network Requests Diagram

katedrala.cz

334 ms

www.katedrala.cz

2349 ms

css_544a1d468de8012cfa84d5397add0832.css

515 ms

jquery.js

520 ms

drupal.js

425 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 95% of them (40 requests) were addressed to the original Katedrala.cz, 5% (2 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Katedrala.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 136.6 kB (30%)

Content Size

455.6 kB

After Optimization

319.0 kB

In fact, the total size of Katedrala.cz main page is 455.6 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. 15% of websites need less resources to load. Images take 278.9 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 32.3 kB

  • Original 43.5 kB
  • After minification 41.3 kB
  • After compression 11.2 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 32.3 kB or 74% of the original size.

Image Optimization

-3%

Potential reduce by 8.1 kB

  • Original 278.9 kB
  • After minification 270.8 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. Katedrala images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 72.9 kB

  • Original 102.8 kB
  • After minification 83.4 kB
  • After compression 29.9 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 72.9 kB or 71% of the original size.

CSS Optimization

-77%

Potential reduce by 23.3 kB

  • Original 30.4 kB
  • After minification 29.6 kB
  • After compression 7.0 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. Katedrala.cz needs all CSS files to be minified and compressed as it can save up to 23.3 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (48%)

Requests Now

40

After Optimization

21

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Katedrala. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

katedrala.cz accessibility score

74

Accessibility Issues

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

<frame> or <iframe> elements do not have a title

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

katedrala.cz best practices score

42

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

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

katedrala.cz SEO score

79

Search Engine Optimization Advices

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 Katedrala.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 Katedrala.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 Katedrala. 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: