Tools & Wizards About Us
atlasskolstvi.cz screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

atlasskolstvi.cz

Vysoké školy, střední školy, ZŠ a jazykové školy v celé ČR | AtlasŠkolství.cz

Page Load Speed

3.2 sec in total

First Response

701 ms

Resources Loaded

2.3 sec

Page Rendered

214 ms

atlasskolstvi.cz screenshot

About Website

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

V Atlasu Školství naleznete prezentaci každé vysoké školy, střední školy, základní školy, ale i jazykové školy a vyšší odborné školy v České Republice.

Visit atlasskolstvi.cz

Key Findings

We analyzed Atlasskolstvi.cz page load time and found that the first response time was 701 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

atlasskolstvi.cz performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value240 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.105

88/100

15%

TTI (Time to Interactive)

Value4.5 s

82/100

10%

Network Requests Diagram

www.atlasskolstvi.cz

701 ms

main.css

306 ms

home.css

406 ms

js

69 ms

jquery.js

620 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 96% of them (27 requests) were addressed to the original Atlasskolstvi.cz, 4% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (701 ms) belongs to the original domain Atlasskolstvi.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 173.4 kB (32%)

Content Size

546.6 kB

After Optimization

373.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Atlasskolstvi.cz main page is 546.6 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 319.2 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 6.0 kB

  • Original 8.8 kB
  • After minification 8.2 kB
  • After compression 2.8 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 6.0 kB or 68% of the original size.

Image Optimization

-2%

Potential reduce by 7.9 kB

  • Original 319.2 kB
  • After minification 311.3 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. Atlas Skolstvi images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 89.3 kB

  • Original 134.3 kB
  • After minification 134.3 kB
  • After compression 45.0 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 89.3 kB or 67% of the original size.

CSS Optimization

-83%

Potential reduce by 70.3 kB

  • Original 84.4 kB
  • After minification 84.2 kB
  • After compression 14.1 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. Atlasskolstvi.cz needs all CSS files to be minified and compressed as it can save up to 70.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (17%)

Requests Now

23

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Atlas Skolstvi. 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 as a result speed up the page load time.

Network Requests Diagram

www.atlasskolstvi.cz

www.atlasskolstvi.cz

701 ms

main.css

main.css

306 ms

home.css

home.css

406 ms

js

js

69 ms

jquery.js

jquery.js

620 ms

lazyload.js

lazyload.js

522 ms

global.js

global.js

522 ms

js03.js

js03.js

520 ms

logo-full.svg

logo-full.svg

115 ms

zs.jpg

zs.jpg

215 ms

ss.jpg

ss.jpg

309 ms

vs.jpg

vs.jpg

214 ms

vos.jpg

vos.jpg

275 ms

js.jpg

js.jpg

310 ms

zam.jpg

zam.jpg

246 ms

S%C5%A0+stav.+%C5%99em.%2C+Brno+Bosonohy.png

S%C5%A0+stav.+%C5%99em.%2C+Brno+Bosonohy.png

455 ms

Academic-School.png

Academic-School.png

430 ms

VOS-SPS-Volyne.png

VOS-SPS-Volyne.png

359 ms

urad-prace.svg

urad-prace.svg

499 ms

nastenne-mapy.svg

nastenne-mapy.svg

436 ms

sevt.svg

sevt.svg

501 ms

comgate.svg

comgate.svg

632 ms

visa.svg

visa.svg

637 ms

mc.svg

mc.svg

556 ms

roboto-v20-latin-ext_latin-regular.woff

roboto-v20-latin-ext_latin-regular.woff

606 ms

roboto-v20-latin-ext_latin-500.woff

roboto-v20-latin-ext_latin-500.woff

636 ms

roboto-v20-latin-ext_latin-300.woff

roboto-v20-latin-ext_latin-300.woff

582 ms

roboto-v20-latin-ext_latin-700.woff

roboto-v20-latin-ext_latin-700.woff

651 ms

Accessibility Review

atlasskolstvi.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.

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 valid value for its [lang] attribute.

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

Best Practices

atlasskolstvi.cz best practices score

83

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

SEO Factors

atlasskolstvi.cz SEO score

92

Search Engine Optimization Advices

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CZ

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Atlasskolstvi.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed language. Our system also found out that Atlasskolstvi.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

atlasskolstvi.cz

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