Tools & Wizards About Us
vsh.cz screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    26% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    69% of websites

vsh.cz

Vysoká škola hotelová v Praze - vsh.cz

Page Load Speed

4.8 sec in total

First Response

356 ms

Resources Loaded

4 sec

Page Rendered

456 ms

vsh.cz screenshot

About Website

Click here to check amazing Vsh content for Czech Republic. Otherwise, check out these important facts you probably never knew about vsh.cz

- vsh.cz

Visit vsh.cz

Key Findings

We analyzed Vsh.cz page load time and found that the first response time was 356 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

vsh.cz performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value11.2 s

0/100

25%

SI (Speed Index)

Value11.6 s

4/100

10%

TBT (Total Blocking Time)

Value1,300 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.297

40/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

Network Requests Diagram

vsh.cz

356 ms

1264 ms

style.min.css

126 ms

popup.css

245 ms

jquery.js

610 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 43% of them (29 requests) were addressed to the original Vsh.cz, 22% (15 requests) were made to Scontent.xx.fbcdn.net and 18% (12 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Vsh.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 136.2 kB (22%)

Content Size

623.3 kB

After Optimization

487.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vsh.cz main page is 623.3 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. 55% of websites need less resources to load. Images take 429.9 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 27.6 kB

  • Original 36.4 kB
  • After minification 34.9 kB
  • After compression 8.9 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 27.6 kB or 76% of the original size.

Image Optimization

-4%

Potential reduce by 18.6 kB

  • Original 429.9 kB
  • After minification 411.3 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. Vsh images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 89.8 kB

  • Original 156.6 kB
  • After minification 154.0 kB
  • After compression 66.8 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 89.8 kB or 57% of the original size.

CSS Optimization

-45%

Potential reduce by 174 B

  • Original 388 B
  • After minification 344 B
  • After compression 214 B

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. Vsh.cz needs all CSS files to be minified and compressed as it can save up to 174 B or 45% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (25%)

Requests Now

65

After Optimization

49

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vsh. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vsh.cz

vsh.cz

356 ms

1264 ms

style.min.css

style.min.css

126 ms

popup.css

popup.css

245 ms

jquery.js

jquery.js

610 ms

slimbox2.js

slimbox2.js

263 ms

cycle.js

cycle.js

363 ms

di_banner.js

di_banner.js

486 ms

funkce.js

funkce.js

245 ms

analytics.js

analytics.js

44 ms

back.jpg

back.jpg

731 ms

logo-cs.png

logo-cs.png

245 ms

ico-fb.png

ico-fb.png

143 ms

lang-cs.jpg

lang-cs.jpg

142 ms

lang-en.jpg

lang-en.jpg

142 ms

lang-ru.jpg

lang-ru.jpg

141 ms

ico-search.png

ico-search.png

263 ms

cache.php

cache.php

508 ms

cache.php

cache.php

639 ms

cache.php

cache.php

637 ms

cache.php

cache.php

652 ms

cache.php

cache.php

637 ms

ico-tile-1.png

ico-tile-1.png

629 ms

ico-tile-2.png

ico-tile-2.png

750 ms

ico-tile-3.png

ico-tile-3.png

758 ms

ico-tile-4.png

ico-tile-4.png

757 ms

previewx.php

previewx.php

762 ms

previewx.php

previewx.php

778 ms

previewx.php

previewx.php

851 ms

previewx.php

previewx.php

873 ms

obsah-back.jpg

obsah-back.jpg

878 ms

all.js

all.js

45 ms

logo.jpg

logo.jpg

242 ms

collect

collect

33 ms

like.php

like.php

136 ms

collect

collect

74 ms

111 ms

xd_arbiter.php

xd_arbiter.php

39 ms

xd_arbiter.php

xd_arbiter.php

49 ms

Dt46LmMjzaB.js

Dt46LmMjzaB.js

35 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

27 ms

ping

ping

73 ms

like_box.php

like_box.php

291 ms

ebiMDO3r-8l.css

ebiMDO3r-8l.css

5 ms

jGc-59L_9lo.css

jGc-59L_9lo.css

7 ms

TKuNj0xVh4A.js

TKuNj0xVh4A.js

13 ms

hHAUS9q05ns.js

hHAUS9q05ns.js

36 ms

0wM5s1Khldu.js

0wM5s1Khldu.js

33 ms

1bNoFZUdlYZ.js

1bNoFZUdlYZ.js

50 ms

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535998_10150757829593150_516219561_n.jpg

72 ms

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556104_10150757827613150_1598085736_n.jpg

24 ms

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26 ms

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29 ms

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27 ms

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24 ms

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28 ms

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25 ms

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31 ms

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30 ms

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28 ms

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29 ms

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31 ms

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30 ms

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32 ms

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18 ms

s7jcwEQH7Sx.png

s7jcwEQH7Sx.png

16 ms

I6-MnjEovm5.js

I6-MnjEovm5.js

3 ms

pQrUxxo5oQp.js

pQrUxxo5oQp.js

6 ms

Accessibility Review

vsh.cz accessibility score

76

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA input fields do not have accessible names

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

Buttons do not have an accessible name

High

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

High

Links do not have a discernible name

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

vsh.cz best practices score

67

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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

vsh.cz SEO score

90

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vsh.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 Vsh.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

vsh.cz

Open Graph description is not detected on the main page of Vsh. 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: