Tools & Wizards About Us
lezec.cz screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 36

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

lezec.cz

Lezec

Page Load Speed

4.7 sec in total

First Response

309 ms

Resources Loaded

3.8 sec

Page Rendered

553 ms

lezec.cz screenshot

About Website

Click here to check amazing Lezec content for Czech Republic. Otherwise, check out these important facts you probably never knew about lezec.cz

Lezec

Visit lezec.cz

Key Findings

We analyzed Lezec.cz page load time and found that the first response time was 309 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

lezec.cz performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value710 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0.232

54/100

15%

TTI (Time to Interactive)

Value9.8 s

28/100

10%

Network Requests Diagram

lezec.cz

309 ms

www.lezec.cz

1229 ms

ga.js

45 ms

cookieconsent.latest.min.js

37 ms

ajs.php

407 ms

Our browser made a total of 156 requests to load all elements on the main page. We found that 37% of them (57 requests) were addressed to the original Lezec.cz, 16% (25 requests) were made to Kieroad.cz and 5% (8 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Lezec.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 445.7 kB (35%)

Content Size

1.3 MB

After Optimization

830.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Lezec.cz main page is 1.3 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. 50% of websites need less resources to load. Images take 694.9 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 189.4 kB

  • Original 220.4 kB
  • After minification 219.5 kB
  • After compression 31.0 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 189.4 kB or 86% of the original size.

Image Optimization

-8%

Potential reduce by 54.3 kB

  • Original 694.9 kB
  • After minification 640.5 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. Lezec images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 202.0 kB

  • Original 360.6 kB
  • After minification 340.8 kB
  • After compression 158.6 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 202.0 kB or 56% of the original size.

Requests Breakdown

Number of requests can be reduced by 83 (58%)

Requests Now

144

After Optimization

61

  • AJAX
  • Images
  • JavaScript

The browser has sent 144 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lezec. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 45 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

lezec.cz

lezec.cz

309 ms

www.lezec.cz

www.lezec.cz

1229 ms

ga.js

ga.js

45 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

37 ms

ajs.php

ajs.php

407 ms

bg.gif

bg.gif

211 ms

top00.gif

top00.gif

408 ms

cz1.gif

cz1.gif

212 ms

en1_.gif

en1_.gif

212 ms

topicos.gif

topicos.gif

212 ms

topicob.gif

topicob.gif

409 ms

topicoh.gif

topicoh.gif

409 ms

topicoz.gif

topicoz.gif

410 ms

b11.gif

b11.gif

410 ms

icorck.gif

icorck.gif

615 ms

go.gif

go.gif

617 ms

__utm.gif

__utm.gif

12 ms

collect

collect

60 ms

form.gif

form.gif

563 ms

icoinf1.gif

icoinf1.gif

563 ms

banner_shop.gif

banner_shop.gif

564 ms

icoinf2.gif

icoinf2.gif

758 ms

a7.jpg

a7.jpg

759 ms

a3.jpg

a3.jpg

759 ms

a6.jpg

a6.jpg

761 ms

3.gif

3.gif

761 ms

a4.jpg

a4.jpg

760 ms

a5.jpg

a5.jpg

1023 ms

a1.jpg

a1.jpg

1024 ms

a2.jpg

a2.jpg

1024 ms

zav.gif

zav.gif

1026 ms

ga-audiences

ga-audiences

37 ms

c160213_.jpg

c160213_.jpg

1175 ms

noteb.gif

noteb.gif

830 ms

fil21173.jpg

fil21173.jpg

1361 ms

fil21196.jpg

fil21196.jpg

1032 ms

fil21184.jpg

fil21184.jpg

1057 ms

fil21127.jpg

fil21127.jpg

1258 ms

fil21107.jpg

fil21107.jpg

1033 ms

fil21094.jpg

fil21094.jpg

1256 ms

c160216_.jpg

c160216_.jpg

1361 ms

fil21081.jpg

fil21081.jpg

1557 ms

fil21040.jpg

fil21040.jpg

1359 ms

noteg.gif

noteg.gif

1457 ms

fil21210.jpg

fil21210.jpg

1438 ms

c160221_.jpg

c160221_.jpg

1745 ms

fil21208.jpg

fil21208.jpg

1537 ms

show_ads.js

show_ads.js

9 ms

lg.php

lg.php

115 ms

c160226_.jpg

c160226_.jpg

1428 ms

fil21206.jpg

fil21206.jpg

1579 ms

fil21204.jpg

fil21204.jpg

1820 ms

fil21202.jpg

fil21202.jpg

1628 ms

ca-pub-8881077167279289.js

ca-pub-8881077167279289.js

34 ms

zrt_lookup.html

zrt_lookup.html

100 ms

show_ads_impl.js

show_ads_impl.js

53 ms

fil21200.jpg

fil21200.jpg

1815 ms

dot.asp

dot.asp

212 ms

ajs.php

ajs.php

192 ms

ads

ads

119 ms

osd.js

osd.js

6 ms

xgemius.js

xgemius.js

1424 ms

b2.gif

b2.gif

1531 ms

bgtopc.gif

bgtopc.gif

1629 ms

fil_8704.jpg

fil_8704.jpg

1630 ms

3.gif

3.gif

1630 ms

bgleft.gif

bgleft.gif

1727 ms

bb1bf64502b993575fb40ceb618222e0.jpg

bb1bf64502b993575fb40ceb618222e0.jpg

102 ms

lg.php

lg.php

112 ms

lezec728x90passback.html

lezec728x90passback.html

204 ms

ajs.php

ajs.php

218 ms

ajs.php

ajs.php

113 ms

ajs.php

ajs.php

140 ms

3fd1caba90d349ea499224c26f25234e.jpg

3fd1caba90d349ea499224c26f25234e.jpg

207 ms

lg.php

lg.php

141 ms

ads

ads

339 ms

lg.php

lg.php

112 ms

ajs.php

ajs.php

116 ms

ads

ads

314 ms

bgright.gif

bgright.gif

1158 ms

ss3.gif

ss3.gif

1164 ms

lg.php

lg.php

109 ms

ajs.php

ajs.php

118 ms

lezec120x600passback.html

lezec120x600passback.html

110 ms

ads

ads

164 ms

ank01.gif

ank01.gif

1035 ms

ank02.gif

ank02.gif

1035 ms

lg.php

lg.php

109 ms

ajs.php

ajs.php

1045 ms

ajs.php

ajs.php

128 ms

lezec336x280passback.html

lezec336x280passback.html

104 ms

bsredirect5.js

bsredirect5.js

66 ms

adj

adj

127 ms

beacon

beacon

57 ms

3ee1389b6dd5c9c6589ed448910a83eb.jpg

3ee1389b6dd5c9c6589ed448910a83eb.jpg

214 ms

lg.php

lg.php

121 ms

ajs.php

ajs.php

109 ms

bst2tv3.html

bst2tv3.html

76 ms

verifyc.js

verifyc.js

53 ms

260 ms

aclk

aclk

49 ms

modernizr_2.8.3_ec185bb44fe5e6bf7455d6e8ef37ed0e_no-classes.js

modernizr_2.8.3_ec185bb44fe5e6bf7455d6e8ef37ed0e_no-classes.js

61 ms

lidar.js

lidar.js

19 ms

antenna2.js

antenna2.js

80 ms

dvtp_src.js

dvtp_src.js

79 ms

ca

ca

57 ms

firstevent

firstevent

22 ms

index.html

index.html

30 ms

dvtp_src_internal25.js

dvtp_src_internal25.js

21 ms

pixel

pixel

113 ms

sbhK2lTE.js

sbhK2lTE.js

119 ms

easeljs-0.8.1.min.js

easeljs-0.8.1.min.js

138 ms

tweenjs-0.6.1.min.js

tweenjs-0.6.1.min.js

136 ms

movieclip-0.8.1.min.js

movieclip-0.8.1.min.js

137 ms

preloadjs-0.6.1.min.js

preloadjs-0.6.1.min.js

135 ms

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP.js

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP.js

75 ms

push

push

165 ms

t2tv7.html

t2tv7.html

95 ms

visit.js

visit.js

117 ms

Adform.Bootstrap.js

Adform.Bootstrap.js

65 ms

pixel

pixel

69 ms

pixel

pixel

69 ms

cTrvNaRi.html

cTrvNaRi.html

17 ms

7-1I540iwtLQZRDhQUP9L-vt70m6ZeYTcveWqB03r34.js

7-1I540iwtLQZRDhQUP9L-vt70m6ZeYTcveWqB03r34.js

33 ms

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP_atlas_.json

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP_atlas_.json

27 ms

119 ms

StubHelper.js

StubHelper.js

31 ms

lg.php

lg.php

110 ms

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP_atlas_.png

CCT6738_3_Q1_LC_Lifestyle_ACQ_Sp_NED69.99x12_X1DVR10_160x600_SP_atlas_.png

24 ms

event.gif

event.gif

61 ms

avs5634.js

avs5634.js

35 ms

event.gif

event.gif

87 ms

pixel

pixel

28 ms

sd

sd

25 ms

event.jpg

event.jpg

50 ms

118 ms

boot.js

boot.js

24 ms

246 ms

483 ms

Standard

Standard

70 ms

ajs.php

ajs.php

109 ms

13360903.jpg

13360903.jpg

152 ms

en.png

en.png

54 ms

oba.png

oba.png

53 ms

116 ms

ads

ads

169 ms

lg.php

lg.php

108 ms

745175308226741951

745175308226741951

12 ms

abg.js

abg.js

11 ms

m_js_controller.js

m_js_controller.js

19 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

62 ms

s

s

27 ms

x_button_blue2.png

x_button_blue2.png

25 ms

push

push

30 ms

rexdot.gif

rexdot.gif

100 ms

pixel

pixel

18 ms

Accessibility Review

lezec.cz accessibility score

36

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 [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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

lezec.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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

lezec.cz SEO score

69

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lezec.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Lezec.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

lezec.cz

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