Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 77

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

support.zcu.cz

HelpDesk

Page Load Speed

5.8 sec in total

First Response

1 sec

Resources Loaded

4.5 sec

Page Rendered

230 ms

support.zcu.cz screenshot

About Website

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

Visit support.zcu.cz

Key Findings

We analyzed Support.zcu.cz page load time and found that the first response time was 1 sec and then it took 4.8 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

support.zcu.cz performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

59/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

Hlavn%C3%AD_strana

1021 ms

load.php

550 ms

load.php

481 ms

load.php

580 ms

load.php

444 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 88% of them (14 requests) were addressed to the original Support.zcu.cz, 13% (2 requests) were made to Piwik.zcu.cz. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Support.zcu.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 67.0 kB (44%)

Content Size

152.2 kB

After Optimization

85.2 kB

In fact, the total size of Support.zcu.cz main page is 152.2 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. 20% of websites need less resources to load. Images take 69.1 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 18.9 kB

  • Original 28.2 kB
  • After minification 26.0 kB
  • After compression 9.3 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 18.9 kB or 67% of the original size.

Image Optimization

-18%

Potential reduce by 12.3 kB

  • Original 69.1 kB
  • After minification 56.8 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. Obviously, Support Zcu needs image optimization as it can save up to 12.3 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 35.7 kB

  • Original 54.9 kB
  • After minification 54.9 kB
  • After compression 19.1 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 35.7 kB or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (43%)

Requests Now

14

After Optimization

8

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Support Zcu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

support.zcu.cz accessibility score

94

Accessibility Issues

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

support.zcu.cz best practices score

77

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

support.zcu.cz SEO score

58

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

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 Support.zcu.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 Support.zcu.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 Support Zcu. 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: