Tools & Wizards About Us
zusstod.cz screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

zusstod.cz

ZUŠ Stod - Základní umělecká škola Stod - Merklín - Chotěšov - Líně

Page Load Speed

5.6 sec in total

First Response

928 ms

Resources Loaded

2.5 sec

Page Rendered

2.2 sec

zusstod.cz screenshot

About Website

Welcome to zusstod.cz homepage info - get ready to check Zus Stod best content right away, or after learning these important things about zusstod.cz

ZUŠ Stod poskytuje vzdělání ve třech oborech (hudebním, výtvarném a literárně-dramatickém) a podporuje jejich vzájemnou spolupráci.

Visit zusstod.cz

Key Findings

We analyzed Zusstod.cz page load time and found that the first response time was 928 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

zusstod.cz performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value27.8 s

0/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value4,280 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.229

54/100

15%

TTI (Time to Interactive)

Value24.1 s

0/100

10%

Network Requests Diagram

zusstod.cz

928 ms

wp-emoji-release.min.js

110 ms

common-skeleton.min.css

209 ms

tooltip.min.css

212 ms

style.min.css

213 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 95% of them (35 requests) were addressed to the original Zusstod.cz, 3% (1 request) were made to Izus.cz and 3% (1 request) were made to . The less responsive or slowest element that took the longest time to load (963 ms) belongs to the original domain Zusstod.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 39.9 kB (1%)

Content Size

6.2 MB

After Optimization

6.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zusstod.cz main page is 6.2 MB. 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 6.0 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 27.5 kB

  • Original 37.4 kB
  • After minification 35.9 kB
  • After compression 9.8 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 27.5 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 6.7 kB

  • Original 6.0 MB
  • After minification 6.0 MB

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. Zus Stod images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 1.5 kB

  • Original 59.4 kB
  • After minification 59.4 kB
  • After compression 58.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-4%

Potential reduce by 4.2 kB

  • Original 95.0 kB
  • After minification 95.0 kB
  • After compression 90.8 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. Zusstod.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 24 (73%)

Requests Now

33

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zus Stod. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zusstod.cz

zusstod.cz

928 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

110 ms

common-skeleton.min.css

common-skeleton.min.css

209 ms

tooltip.min.css

tooltip.min.css

212 ms

style.min.css

style.min.css

213 ms

dashicons.min.css

dashicons.min.css

320 ms

everest-forms.css

everest-forms.css

224 ms

search-filter.min.css

search-filter.min.css

225 ms

style.css

style.css

309 ms

genericons.css

genericons.css

320 ms

font-awesome.min.css

font-awesome.min.css

314 ms

app.css

app.css

325 ms

jquery.js

jquery.js

431 ms

jquery-migrate.min.js

jquery-migrate.min.js

411 ms

search-filter-build.min.js

search-filter-build.min.js

417 ms

chosen.jquery.min.js

chosen.jquery.min.js

411 ms

spacious-custom.js

spacious-custom.js

417 ms

jquery-ui-1.8.23.custom.css

jquery-ui-1.8.23.custom.css

779 ms

bootstrap-datepicker.standalone.min.css

bootstrap-datepicker.standalone.min.css

779 ms

tribe-events-theme.min.css

tribe-events-theme.min.css

779 ms

core.min.js

core.min.js

780 ms

datepicker.min.js

datepicker.min.js

792 ms

jquery.cycle2.swipe.min.js

jquery.cycle2.swipe.min.js

799 ms

jquery.cycle2.min.js

jquery.cycle2.min.js

803 ms

navigation.js

navigation.js

804 ms

skip-link-focus-fix.js

skip-link-focus-fix.js

804 ms

wp-embed.min.js

wp-embed.min.js

806 ms

izus_baner_200x110px.png

izus_baner_200x110px.png

705 ms

logo_zus_stod.png

logo_zus_stod.png

346 ms

DSC08218-e1581271124557.jpg

DSC08218-e1581271124557.jpg

865 ms

IMG_20190425_170617-e1581274048973.jpg

IMG_20190425_170617-e1581274048973.jpg

857 ms

DSC07605-e1581275806378.jpg

DSC07605-e1581275806378.jpg

963 ms

plak%C3%A1t-2-150x150.jpeg

plak%C3%A1t-2-150x150.jpeg

250 ms

divocina-3-150x150.jpg

divocina-3-150x150.jpg

236 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

323 ms

Genericons.svg

Genericons.svg

115 ms

8AAnjaY2BgYGQAgosrjpwF0ZcUq9bCaABTzgdAAAA=

8AAnjaY2BgYGQAgosrjpwF0ZcUq9bCaABTzgdAAAA=

13 ms

Accessibility Review

zusstod.cz accessibility score

86

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.

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

Links do not have a discernible name

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

zusstod.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

zusstod.cz SEO score

91

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

    CS

  • Encoding

    UTF-8

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

zusstod.cz

Open Graph data is detected on the main page of Zus Stod. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: