Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

tedeum.cz

TE DEUM HODIE

Page Load Speed

4.3 sec in total

First Response

758 ms

Resources Loaded

2.9 sec

Page Rendered

648 ms

tedeum.cz screenshot

About Website

Welcome to tedeum.cz homepage info - get ready to check TE DEUM best content for Czech Republic right away, or after learning these important things about tedeum.cz

Visit tedeum.cz

Key Findings

We analyzed Tedeum.cz page load time and found that the first response time was 758 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

tedeum.cz performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

21/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value4.4 s

83/100

10%

Network Requests Diagram

www.tedeum.cz

758 ms

wp-emoji-release.min.js

304 ms

flashblock.css

206 ms

player.css

207 ms

css

70 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 96% of them (26 requests) were addressed to the original Tedeum.cz, 4% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (902 ms) belongs to the original domain Tedeum.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 191.1 kB (28%)

Content Size

679.0 kB

After Optimization

487.9 kB

In fact, the total size of Tedeum.cz main page is 679.0 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. Images take 415.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 30.4 kB

  • Original 38.9 kB
  • After minification 38.4 kB
  • After compression 8.5 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 30.4 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 6.2 kB

  • Original 415.7 kB
  • After minification 409.4 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. TE DEUM images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 110.3 kB

  • Original 169.2 kB
  • After minification 169.2 kB
  • After compression 59.0 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 110.3 kB or 65% of the original size.

CSS Optimization

-80%

Potential reduce by 44.3 kB

  • Original 55.3 kB
  • After minification 47.5 kB
  • After compression 11.0 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. Tedeum.cz needs all CSS files to be minified and compressed as it can save up to 44.3 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (31%)

Requests Now

26

After Optimization

18

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TE DEUM. 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 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

tedeum.cz accessibility score

88

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

tedeum.cz best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

tedeum.cz SEO score

79

Search Engine Optimization Advices

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

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 Tedeum.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 Tedeum.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 TE DEUM. 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: