Tools & Wizards About Us
mapy.atlas.cz screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

mapy.atlas.cz

Atlas.cz

Page Load Speed

8 sec in total

First Response

927 ms

Resources Loaded

6.4 sec

Page Rendered

667 ms

mapy.atlas.cz screenshot

About Website

Click here to check amazing Mapy Atlas content for United States. Otherwise, check out these important facts you probably never knew about mapy.atlas.cz

Atlas.cz je český internetový portál nabízející e-mail, aktuální zpravodajství, počasí a další zajímavé služby.

Visit mapy.atlas.cz

Key Findings

We analyzed Mapy.atlas.cz page load time and found that the first response time was 927 ms and then it took 7.1 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

mapy.atlas.cz performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.7 s

2/100

10%

LCP (Largest Contentful Paint)

Value11.8 s

0/100

25%

SI (Speed Index)

Value19.3 s

0/100

10%

TBT (Total Blocking Time)

Value3,700 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.186

65/100

15%

TTI (Time to Interactive)

Value43.0 s

0/100

10%

Network Requests Diagram

mapy.atlas.cz

927 ms

atlas.centrum.cz

719 ms

style-new.css

604 ms

ego.js

685 ms

head-desktop.js

695 ms

Our browser made a total of 266 requests to load all elements on the main page. We found that 0% of them (1 request) were addressed to the original Mapy.atlas.cz, 18% (47 requests) were made to Cdn.i0.cz and 12% (33 requests) were made to Pixel.rubiconproject.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Cdn.i0.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 729.5 kB (47%)

Content Size

1.5 MB

After Optimization

819.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Mapy.atlas.cz main page is 1.5 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. 60% of websites need less resources to load. Javascripts take 763.1 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 101.4 kB

  • Original 131.7 kB
  • After minification 127.7 kB
  • After compression 30.2 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 101.4 kB or 77% of the original size.

Image Optimization

-10%

Potential reduce by 56.1 kB

  • Original 566.5 kB
  • After minification 510.4 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. Mapy Atlas images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 495.1 kB

  • Original 763.1 kB
  • After minification 734.4 kB
  • After compression 268.0 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 495.1 kB or 65% of the original size.

CSS Optimization

-87%

Potential reduce by 76.8 kB

  • Original 87.8 kB
  • After minification 87.0 kB
  • After compression 11.0 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. Mapy.atlas.cz needs all CSS files to be minified and compressed as it can save up to 76.8 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 145 (58%)

Requests Now

250

After Optimization

105

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 250 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mapy Atlas. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 64 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

mapy.atlas.cz

mapy.atlas.cz

927 ms

atlas.centrum.cz

atlas.centrum.cz

719 ms

style-new.css

style-new.css

604 ms

ego.js

ego.js

685 ms

head-desktop.js

head-desktop.js

695 ms

functions-desktop.js

functions-desktop.js

473 ms

kibitz_shared.merge.js

kibitz_shared.merge.js

479 ms

ga-set.js

ga-set.js

484 ms

conversion.js

conversion.js

36 ms

css

css

62 ms

sashec.bundle.min.js

sashec.bundle.min.js

122 ms

satelliteLib-a003dc427fcbca9cbed6b1243422062657b2a85b.js

satelliteLib-a003dc427fcbca9cbed6b1243422062657b2a85b.js

26 ms

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satellite-5492f71b3736320015eb0700.js

3 ms

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783 ms

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119 ms

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902 ms

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1024 ms

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1144 ms

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1269 ms

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1150 ms

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1270 ms

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1146 ms

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1268 ms

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1262 ms

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1269 ms

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1270 ms

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1412 ms

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1410 ms

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1410 ms

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1411 ms

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1410 ms

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1411 ms

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1616 ms

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1594 ms

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1615 ms

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1598 ms

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1595 ms

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1597 ms

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1729 ms

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1729 ms

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1730 ms

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1729 ms

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1728 ms

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1727 ms

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1865 ms

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1858 ms

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1863 ms

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1863 ms

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1863 ms

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1865 ms

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456 ms

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113 ms

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215 ms

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220 ms

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843 ms

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1197 ms

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1083 ms

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54 ms

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172 ms

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172 ms

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172 ms

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172 ms

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171 ms

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160 ms

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350 ms

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142 ms

cl

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117 ms

creative_add_on.js

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171 ms

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963 ms

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sync

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86 ms

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74 ms

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838 ms

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837 ms

surly.js

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46 ms

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122 ms

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832 ms

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8 ms

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14 ms

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79 ms

lidar.js

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63 ms

controltag

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76 ms

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32 ms

dtc

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29 ms

sync

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30 ms

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833 ms

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832 ms

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832 ms

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831 ms

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832 ms

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25 ms

306438-15.js

306438-15.js

170 ms

controltag.js.f8e94fa978cc2569e4b4423df4245d7e

controltag.js.f8e94fa978cc2569e4b4423df4245d7e

143 ms

JB_JBCardAcquisition2_300x250.html

JB_JBCardAcquisition2_300x250.html

114 ms

t2tv7.html

t2tv7.html

289 ms

visit.js

visit.js

90 ms

edge.6.0.0.min.js

edge.6.0.0.min.js

8 ms

JB_JBCardAcquisition2_300x250_edge.js

JB_JBCardAcquisition2_300x250_edge.js

29 ms

s_0ROEhh2u6V_1363111771.html

s_0ROEhh2u6V_1363111771.html

32 ms

get

get

134 ms

optout_check

optout_check

151 ms

channels.js

channels.js

171 ms

async=0

async=0

168 ms

JB_JBCardAcquisition2_300x250_edge.js

JB_JBCardAcquisition2_300x250_edge.js

20 ms

cl

cl

120 ms

creative_add_on.js

creative_add_on.js

106 ms

avs581.js

avs581.js

103 ms

shapesBack.jpg

shapesBack.jpg

112 ms

card_shadow.png

card_shadow.png

103 ms

card.png

card.png

109 ms

cta-gloss.png

cta-gloss.png

162 ms

acq2_300x250_copy1.png

acq2_300x250_copy1.png

161 ms

acq1_300x250_copy2a.png

acq1_300x250_copy2a.png

161 ms

acq1_300x250_copy2b.png

acq1_300x250_copy2b.png

162 ms

acq1_300x250_copy3.png

acq1_300x250_copy3.png

162 ms

logo.png

logo.png

161 ms

cta.png

cta.png

218 ms

legal_300x250.png

legal_300x250.png

218 ms

dtc

dtc

74 ms

activeview

activeview

150 ms

pixel

pixel

211 ms

rubicon

rubicon

204 ms

rc

rc

373 ms

event.jpg

event.jpg

189 ms

dt

dt

98 ms

cl

cl

114 ms

tap.php

tap.php

142 ms

sync

sync

109 ms

145478-55.js

145478-55.js

198 ms

rubicon

rubicon

4 ms

tap.php

tap.php

162 ms

tap.php

tap.php

226 ms

box_19_top-right.png

box_19_top-right.png

15 ms

ci.png

ci.png

11 ms

tap.php

tap.php

223 ms

tap.php

tap.php

226 ms

JB_JBCardAcquisition2_300x250_edge.js

JB_JBCardAcquisition2_300x250_edge.js

30 ms

tap.php

tap.php

241 ms

get

get

45 ms

optout_check

optout_check

41 ms

JB_JBCardAcquisition2_300x250_edge.js

JB_JBCardAcquisition2_300x250_edge.js

5 ms

tap.php

tap.php

217 ms

tap.php

tap.php

198 ms

tap.php

tap.php

186 ms

sync

sync

11 ms

145480-2.js

145480-2.js

178 ms

activeview

activeview

13 ms

s_0R5cdUg6Eg_1875074216.html

s_0R5cdUg6Eg_1875074216.html

33 ms

logo-small-atlas.png

logo-small-atlas.png

156 ms

152 ms

ga.js

ga.js

69 ms

reklama-horizontal.png

reklama-horizontal.png

147 ms

adServer.bs

adServer.bs

213 ms

creative_add_on.js

creative_add_on.js

39 ms

__utm.gif

__utm.gif

140 ms

rb_match

rb_match

151 ms

cse

cse

440 ms

rbcm

rbcm

894 ms

satellite-5564b2623064311a48640300.js

satellite-5564b2623064311a48640300.js

78 ms

153 ms

l.gif

l.gif

237 ms

collect

collect

228 ms

default.jpg

default.jpg

192 ms

dvtp_src.js

dvtp_src.js

79 ms

uuid.js

uuid.js

549 ms

tap.php

tap.php

122 ms

tap.php

tap.php

114 ms

check

check

95 ms

tap.php

tap.php

91 ms

visit.js

visit.js

102 ms

tap.php

tap.php

170 ms

sync

sync

169 ms

100 ms

sync

sync

70 ms

ingkonto_120x90_3.png

ingkonto_120x90_3.png

94 ms

637 ms

async=1

async=1

150 ms

pecivo_120x90.jpg

pecivo_120x90.jpg

96 ms

tap.php

tap.php

174 ms

tap.php

tap.php

222 ms

tap.php

tap.php

186 ms

266278-2.html

266278-2.html

127 ms

avs5639.js

avs5639.js

68 ms

event.gif

event.gif

106 ms

event.gif

event.gif

110 ms

event.jpg

event.jpg

31 ms

sync

sync

10 ms

266300-2.js

266300-2.js

134 ms

0R5cdUg6Eg_1875074216.html

0R5cdUg6Eg_1875074216.html

11 ms

emily.html

emily.html

15 ms

emily.html

emily.html

18 ms

adServer.bs

adServer.bs

36 ms

creative_add_on.js

creative_add_on.js

55 ms

pixel.htm

pixel.htm

38 ms

channels.js

channels.js

14 ms

tap.php

tap.php

261 ms

default.jpg

default.jpg

10 ms

ddc.htm

ddc.htm

23 ms

cms-2c.html

cms-2c.html

39 ms

tap.php

tap.php

59 ms

2964

2964

39 ms

Pug

Pug

43 ms

rum

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20 ms

sync

sync

11 ms

tap.php

tap.php

104 ms

pixel

pixel

39 ms

demconf.jpg

demconf.jpg

32 ms

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38 ms

385636.gif

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rc

rc

48 ms

rubicon

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42 ms

rubicon.ashx

rubicon.ashx

163 ms

rc

rc

86 ms

pixel

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101 ms

m.gif

m.gif

85 ms

match-result

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153 ms

check

check

93 ms

tap.php

tap.php

122 ms

tap.php

tap.php

167 ms

rs

rs

94 ms

sd

sd

104 ms

tap.php

tap.php

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tap.php

tap.php

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tap.php

tap.php

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tap.php

tap.php

250 ms

tap.php

tap.php

227 ms

tap.php

tap.php

213 ms

147 ms

tap.php

tap.php

190 ms

tap.php

tap.php

98 ms

pixel.gif

pixel.gif

81 ms

tap.php

tap.php

200 ms

m_yahoo.gif

m_yahoo.gif

12 ms

tap.php

tap.php

186 ms

tap.php

tap.php

82 ms

pixel.adsafeprotected.com

pixel.adsafeprotected.com

91 ms

Accessibility Review

mapy.atlas.cz accessibility score

64

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[role]s do not have all required [aria-*] attributes

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.

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

Definition list items are not wrapped in <dl> elements

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

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.

Best Practices

mapy.atlas.cz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

mapy.atlas.cz SEO score

83

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

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 Mapy.atlas.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 Mapy.atlas.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

mapy.atlas.cz

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