Tools & Wizards About Us
atlasskolstvi.cz screenshot

Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

atlasskolstvi.cz

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

Page Load Speed

2.8 sec in total

First Response

546 ms

Resources Loaded

2.2 sec

Page Rendered

121 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 546 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

atlasskolstvi.cz performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

88/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

82/100

25%

SI (Speed Index)

Value3.0 s

93/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.105

88/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

www.atlasskolstvi.cz

546 ms

m.atlasskolstvi.cz

483 ms

styles.css

131 ms

modernizr-2.0.js

353 ms

jquery.js

604 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Atlasskolstvi.cz, 78% (14 requests) were made to M.atlasskolstvi.cz and 11% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (604 ms) relates to the external source M.atlasskolstvi.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 97.4 kB (64%)

Content Size

152.1 kB

After Optimization

54.7 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Atlasskolstvi.cz main page is 152.1 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. Only 10% of websites need less resources to load. Javascripts take 139.4 kB which makes up the majority of the site volume.

HTML Optimization

-59%

Potential reduce by 2.3 kB

  • Original 3.8 kB
  • After minification 3.8 kB
  • After compression 1.6 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 2.3 kB or 59% of the original size.

JavaScript Optimization

-64%

Potential reduce by 88.7 kB

  • Original 139.4 kB
  • After minification 139.4 kB
  • After compression 50.7 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 88.7 kB or 64% of the original size.

CSS Optimization

-72%

Potential reduce by 6.4 kB

  • Original 8.9 kB
  • After minification 8.9 kB
  • After compression 2.5 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 6.4 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (33%)

Requests Now

12

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 12 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

546 ms

m.atlasskolstvi.cz

m.atlasskolstvi.cz

483 ms

styles.css

styles.css

131 ms

modernizr-2.0.js

modernizr-2.0.js

353 ms

jquery.js

jquery.js

604 ms

swipe.js

swipe.js

249 ms

global.js

global.js

248 ms

body-bg.gif

body-bg.gif

132 ms

menu-li-1.gif

menu-li-1.gif

115 ms

menu-li-2.gif

menu-li-2.gif

113 ms

box-bg.gif

box-bg.gif

115 ms

mpsv.gif

mpsv.gif

118 ms

gaudeamus.gif

gaudeamus.gif

222 ms

cez.gif

cez.gif

223 ms

swipe-li.gif

swipe-li.gif

233 ms

analytics.js

analytics.js

22 ms

collect

collect

13 ms

collect

collect

58 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

    CS

  • Encoding

    WINDOWS-1250

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 matches the claimed language. Our system also found out that Atlasskolstvi.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

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: