Tools & Wizards About Us
le.cz screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 0

    Best Practices

  • 77

    SEO

    Google-friendlier than
    36% of websites

le.cz

Train and bus tickets | Leo Express™

Page Load Speed

7.2 sec in total

First Response

327 ms

Resources Loaded

6.6 sec

Page Rendered

241 ms

le.cz screenshot

About Website

Welcome to le.cz homepage info - get ready to check Le best content for Ukraine right away, or after learning these important things about le.cz

Travel comfortably by train or bus to more than 120 destinations across the whole Central Europe

Visit le.cz

Key Findings

We analyzed Le.cz page load time and found that the first response time was 327 ms and then it took 6.8 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

le.cz performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value9.7 s

10/100

10%

TBT (Total Blocking Time)

Value17,500 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value30.5 s

0/100

10%

Network Requests Diagram

le.cz

327 ms

www.le.cz

1454 ms

reset.css

214 ms

lex_09_13.css

424 ms

lex_itm.css

422 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 83% of them (76 requests) were addressed to the original Le.cz, 4% (4 requests) were made to Cdnjs.cloudflare.com and 2% (2 requests) were made to C.imedia.cz. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Le.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 576.1 kB (43%)

Content Size

1.4 MB

After Optimization

774.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Le.cz main page is 1.4 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. 30% of websites need less resources to load. Images take 589.2 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 46.7 kB

  • Original 58.3 kB
  • After minification 47.5 kB
  • After compression 11.6 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. This page needs HTML code to be minified as it can gain 10.7 kB, which is 18% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 46.7 kB or 80% of the original size.

Image Optimization

-4%

Potential reduce by 24.3 kB

  • Original 589.2 kB
  • After minification 564.9 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. Le images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 363.4 kB

  • Original 535.3 kB
  • After minification 494.4 kB
  • After compression 171.9 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 363.4 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 141.8 kB

  • Original 167.6 kB
  • After minification 123.4 kB
  • After compression 25.8 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. Le.cz needs all CSS files to be minified and compressed as it can save up to 141.8 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 51 (59%)

Requests Now

87

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Le. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

le.cz

le.cz

327 ms

www.le.cz

www.le.cz

1454 ms

reset.css

reset.css

214 ms

lex_09_13.css

lex_09_13.css

424 ms

lex_itm.css

lex_itm.css

422 ms

fonts.css

fonts.css

214 ms

jquery.ui.datepicker.css

jquery.ui.datepicker.css

316 ms

jquery.ui.tabs.css

jquery.ui.tabs.css

316 ms

jquery.ui.button.css

jquery.ui.button.css

319 ms

chosen.css

chosen.css

527 ms

jquery.mCustomScrollbar.css

jquery.mCustomScrollbar.css

528 ms

new.css

new.css

740 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

660 ms

jquery-ui.min.js

jquery-ui.min.js

1129 ms

lex_uc.js

lex_uc.js

435 ms

lex_fix.js

lex_fix.js

538 ms

jquery.ui.datepicker-cs.min.js

jquery.ui.datepicker-cs.min.js

539 ms

highslide.js

highslide.js

750 ms

highslide.config.js

highslide.config.js

643 ms

chosen.jquery.js

chosen.jquery.js

854 ms

custom.js

custom.js

678 ms

jquery.mCustomScrollbar.js

jquery.mCustomScrollbar.js

958 ms

lxc.css

lxc.css

649 ms

highslide.css

highslide.css

675 ms

jquery.scrollTo.min.js

jquery.scrollTo.min.js

755 ms

cookieconsent.min.js

cookieconsent.min.js

6 ms

conversion.js

conversion.js

18 ms

retargeting.js

retargeting.js

219 ms

ga.js

ga.js

14 ms

__utm.gif

__utm.gif

16 ms

collect

collect

54 ms

ga-audiences

ga-audiences

40 ms

www.le.cz

www.le.cz

1092 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

4 ms

login_ico.png

login_ico.png

107 ms

new_logo.png

new_logo.png

109 ms

vlajkaCZ.gif

vlajkaCZ.gif

107 ms

vlajkaEN.gif

vlajkaEN.gif

109 ms

vlajkaPL.gif

vlajkaPL.gif

109 ms

vlajkaRU.gif

vlajkaRU.gif

110 ms

vlajkaUA.gif

vlajkaUA.gif

212 ms

main_navigation_predel.png

main_navigation_predel.png

213 ms

slider_2016-1_a.jpg

slider_2016-1_a.jpg

955 ms

menu.png

menu.png

214 ms

menu-divider.jpg

menu-divider.jpg

214 ms

prohodit.png

prohodit.png

215 ms

kalendar.png

kalendar.png

316 ms

zobacek.png

zobacek.png

316 ms

spojL0.png

spojL0.png

320 ms

spojP0.png

spojP0.png

318 ms

koleje.png

koleje.png

319 ms

vlak_akce.png

vlak_akce.png

420 ms

cdd784bfcc0e0707b2d2dfb5e73aac0a_m.png

cdd784bfcc0e0707b2d2dfb5e73aac0a_m.png

1091 ms

sipka.png

sipka.png

423 ms

212e13caf24fa1e71f3148b04d4e06a7_m.jpg

212e13caf24fa1e71f3148b04d4e06a7_m.jpg

743 ms

dc7d628d11986252be67eb5d0d0d4c1a_m.jpg

dc7d628d11986252be67eb5d0d0d4c1a_m.jpg

636 ms

06c6bdd0b8bd5deb64cf57b41e6d1037_m.png

06c6bdd0b8bd5deb64cf57b41e6d1037_m.png

735 ms

e763ed305095ac7aea0996290168fcce_m.jpg

e763ed305095ac7aea0996290168fcce_m.jpg

738 ms

f59eb4b474828713b87c8a71e847abb3_m.jpg

f59eb4b474828713b87c8a71e847abb3_m.jpg

849 ms

patka.jpg

patka.jpg

841 ms

ikony1.png

ikony1.png

844 ms

ikony2.png

ikony2.png

848 ms

ikony3.png

ikony3.png

946 ms

ikony4.png

ikony4.png

950 ms

ikony5.png

ikony5.png

953 ms

pata-fb.png

pata-fb.png

954 ms

pata-tw.png

pata-tw.png

1050 ms

pata-yt.png

pata-yt.png

1055 ms

gplus.jpg

gplus.jpg

1056 ms

qrcode.png

qrcode.png

1031 ms

62 ms

retargeting

retargeting

112 ms

fbds.js

fbds.js

45 ms

97 ms

23 ms

museosans-300.woff

museosans-300.woff

961 ms

museosans-100.woff

museosans-100.woff

1056 ms

museosans_900.woff

museosans_900.woff

1163 ms

museosans_500.woff

museosans_500.woff

1068 ms

appstore.png

appstore.png

1068 ms

googleplay.png

googleplay.png

1069 ms

esf.jpg

esf.jpg

988 ms

www.le.cz

www.le.cz

1250 ms

notebook.css

notebook.css

106 ms

tablet.css

tablet.css

107 ms

mobil.css

mobil.css

214 ms

dark-bottom.css

dark-bottom.css

13 ms

23 ms

custom.png

custom.png

107 ms

zoomout.cur

zoomout.cur

108 ms

loader.big.white.gif

loader.big.white.gif

107 ms

logo.png

logo.png

29 ms

Accessibility Review

le.cz accessibility score

80

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

SEO Factors

le.cz SEO score

77

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

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

High

Document doesn't have a valid hreflang

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Le.cz can be misinterpreted by Google and other search engines. Our service has detected that English 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 Le.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

le.cz

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