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sos-dcr.cz screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

sos-dcr.cz

Střední odborná škola dopravy a cestovního ruchu, Krnov

Page Load Speed

7 sec in total

First Response

395 ms

Resources Loaded

6.2 sec

Page Rendered

441 ms

sos-dcr.cz screenshot

About Website

Click here to check amazing Sos Dcr content for Czech Republic. Otherwise, check out these important facts you probably never knew about sos-dcr.cz

SOŠ dopravy a cestovního ruchu v Krnově nabízí studium oborů - Cestovní ruch (Management CR) a Ekonomika a podnikání (Management v dopravě).

Visit sos-dcr.cz

Key Findings

We analyzed Sos-dcr.cz page load time and found that the first response time was 395 ms and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

sos-dcr.cz performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value13.5 s

0/100

25%

SI (Speed Index)

Value20.9 s

0/100

10%

TBT (Total Blocking Time)

Value1,820 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value32.6 s

0/100

10%

Network Requests Diagram

sos-dcr.cz

395 ms

sos-dcr.cz

1695 ms

wp-emoji-release.min.js

93 ms

common-skeleton.min.css

184 ms

tooltip.min.css

275 ms

Our browser made a total of 192 requests to load all elements on the main page. We found that 93% of them (178 requests) were addressed to the original Sos-dcr.cz, 3% (5 requests) were made to Google.com and 3% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Sos-dcr.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 557.8 kB (14%)

Content Size

4.0 MB

After Optimization

3.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sos-dcr.cz main page is 4.0 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 120.1 kB

  • Original 145.0 kB
  • After minification 141.8 kB
  • After compression 24.9 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 120.1 kB or 83% of the original size.

Image Optimization

-14%

Potential reduce by 430.7 kB

  • Original 3.0 MB
  • After minification 2.6 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. Obviously, Sos Dcr needs image optimization as it can save up to 430.7 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 3.7 kB

  • Original 648.1 kB
  • After minification 648.1 kB
  • After compression 644.4 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

-2%

Potential reduce by 3.3 kB

  • Original 208.8 kB
  • After minification 208.8 kB
  • After compression 205.5 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. Sos-dcr.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 122 (74%)

Requests Now

164

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 164 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sos Dcr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 115 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sos-dcr.cz

sos-dcr.cz

395 ms

sos-dcr.cz

sos-dcr.cz

1695 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

93 ms

common-skeleton.min.css

common-skeleton.min.css

184 ms

tooltip.min.css

tooltip.min.css

275 ms

settings.css

settings.css

276 ms

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370 ms

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648 ms

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382 ms

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460 ms

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Accessibility Review

sos-dcr.cz accessibility score

93

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.

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

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

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

sos-dcr.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

sos-dcr.cz SEO score

92

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 Sos-dcr.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 Sos-dcr.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

sos-dcr.cz

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