Tools & Wizards About Us
dopravniklub.ecn.cz screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

dopravniklub.ecn.cz

Český a Slovenský dopravní klub

Page Load Speed

3.3 sec in total

First Response

475 ms

Resources Loaded

2.7 sec

Page Rendered

151 ms

dopravniklub.ecn.cz screenshot

About Website

Click here to check amazing Dopravni Klub Ecn content for Czech Republic. Otherwise, check out these important facts you probably never knew about dopravniklub.ecn.cz

Český a Slovenský dopravní klub - časopis Dopravní zprávy, databáze rešerší novinových článků, stanoviska k dopravním kauzám, nabídka publikací...

Visit dopravniklub.ecn.cz

Key Findings

We analyzed Dopravniklub.ecn.cz page load time and found that the first response time was 475 ms and then it took 2.9 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

dopravniklub.ecn.cz performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.0 s

100/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

62/100

25%

SI (Speed Index)

Value2.1 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

dopravniklub.ecn.cz

475 ms

sniffer.js

119 ms

custom.js

231 ms

style.js

235 ms

jsview.php3

1418 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 90% of them (37 requests) were addressed to the original Dopravniklub.ecn.cz, 5% (2 requests) were made to Detizeme.cz and 2% (1 request) were made to Aa.ecn.cz. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Aa.ecn.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 73.6 kB (44%)

Content Size

167.7 kB

After Optimization

94.2 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Dopravniklub.ecn.cz main page is 167.7 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 90.4 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 21.0 kB

  • Original 28.5 kB
  • After minification 27.8 kB
  • After compression 7.5 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 21.0 kB or 74% of the original size.

Image Optimization

-16%

Potential reduce by 14.1 kB

  • Original 90.4 kB
  • After minification 76.3 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. Obviously, Dopravni Klub Ecn needs image optimization as it can save up to 14.1 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-79%

Potential reduce by 38.5 kB

  • Original 48.8 kB
  • After minification 38.4 kB
  • After compression 10.3 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 38.5 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (38%)

Requests Now

39

After Optimization

24

  • AJAX
  • Images
  • JavaScript

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dopravni Klub Ecn. 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

dopravniklub.ecn.cz

dopravniklub.ecn.cz

475 ms

sniffer.js

sniffer.js

119 ms

custom.js

custom.js

231 ms

style.js

style.js

235 ms

jsview.php3

jsview.php3

1418 ms

menu.js

menu.js

249 ms

dopravniklub

dopravniklub

1275 ms

csdk000.jpg

csdk000.jpg

121 ms

csdk001.jpg

csdk001.jpg

122 ms

csdk002.jpg

csdk002.jpg

119 ms

csdk003.jpg

csdk003.jpg

256 ms

csdk004.jpg

csdk004.jpg

911 ms

csdk005.jpg

csdk005.jpg

232 ms

csdk006.jpg

csdk006.jpg

237 ms

csdk007.jpg

csdk007.jpg

911 ms

csdk008.jpg

csdk008.jpg

237 ms

csdk009.jpg

csdk009.jpg

346 ms

csdk010.jpg

csdk010.jpg

353 ms

csdk011.jpg

csdk011.jpg

353 ms

csdk012.jpg

csdk012.jpg

372 ms

csdk013.jpg

csdk013.jpg

458 ms

csdk014.jpg

csdk014.jpg

468 ms

csdk015.jpg

csdk015.jpg

470 ms

csdk016.jpg

csdk016.jpg

490 ms

csdk017.jpg

csdk017.jpg

573 ms

csdk018.jpg

csdk018.jpg

584 ms

csdk019.jpg

csdk019.jpg

586 ms

csdk020.jpg

csdk020.jpg

607 ms

csdk021.jpg

csdk021.jpg

687 ms

csdk022.jpg

csdk022.jpg

700 ms

csdk023.jpg

csdk023.jpg

701 ms

csdk024.jpg

csdk024.jpg

725 ms

csdk027.jpg

csdk027.jpg

802 ms

csdk028.jpg

csdk028.jpg

815 ms

csdk029.jpg

csdk029.jpg

818 ms

navrcholu.gif

navrcholu.gif

843 ms

csdk026.jpg

csdk026.jpg

118 ms

banner-jizda-gif

banner-jizda-gif

580 ms

menu_moz.js

menu_moz.js

234 ms

home.gif

home.gif

120 ms

banner-jizda.gif

banner-jizda.gif

237 ms

Accessibility Review

dopravniklub.ecn.cz accessibility score

61

Accessibility Issues

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

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

Image elements do not have [alt] attributes

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

dopravniklub.ecn.cz best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

dopravniklub.ecn.cz SEO score

67

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250

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

dopravniklub.ecn.cz

Open Graph description is not detected on the main page of Dopravni Klub Ecn. 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: