Tools & Wizards About Us
audioteka.cz screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

audioteka.cz

Audioteka.cz | Audioknihy, audioseriály i podcasty online

Page Load Speed

5.2 sec in total

First Response

1.1 sec

Resources Loaded

3.8 sec

Page Rendered

288 ms

audioteka.cz screenshot

About Website

Visit audioteka.cz now to see the best up-to-date Audioteka content for Slovakia and also check out these interesting facts you probably never knew about audioteka.cz

Nejpohodlnější způsob, jak poslouchat audioknihy, ať už jste online či offline. Tisíce příběhů bestsellerových autorů i originální obsah. Vyzkoušejte ukázky zdarma nebo bezplatný zkušební přístup do A...

Visit audioteka.cz

Key Findings

We analyzed Audioteka.cz page load time and found that the first response time was 1.1 sec and then it took 4.1 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

audioteka.cz performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value1,100 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.34

33/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

audioteka.cz

1065 ms

styles.css

406 ms

styles.css

254 ms

jquery.fancybox.css

254 ms

jquery-1.4.2.min.js

381 ms

Our browser made a total of 174 requests to load all elements on the main page. We found that 47% of them (81 requests) were addressed to the original Audioteka.cz, 12% (21 requests) were made to Static.xx.fbcdn.net and 6% (11 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Audioteka.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 933.6 kB (40%)

Content Size

2.3 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Audioteka.cz main page is 2.3 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. 70% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 354.4 kB

  • Original 400.8 kB
  • After minification 340.0 kB
  • After compression 46.4 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 60.9 kB, which is 15% 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 354.4 kB or 88% of the original size.

Image Optimization

-5%

Potential reduce by 55.8 kB

  • Original 1.2 MB
  • After minification 1.2 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. Audioteka images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 397.4 kB

  • Original 585.8 kB
  • After minification 540.1 kB
  • After compression 188.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 397.4 kB or 68% of the original size.

CSS Optimization

-87%

Potential reduce by 126.0 kB

  • Original 145.0 kB
  • After minification 125.0 kB
  • After compression 19.0 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. Audioteka.cz needs all CSS files to be minified and compressed as it can save up to 126.0 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 94 (56%)

Requests Now

167

After Optimization

73

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 167 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Audioteka. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 55 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

audioteka.cz

audioteka.cz

1065 ms

styles.css

styles.css

406 ms

styles.css

styles.css

254 ms

jquery.fancybox.css

jquery.fancybox.css

254 ms

jquery-1.4.2.min.js

jquery-1.4.2.min.js

381 ms

jquery.cookie.pack.js

jquery.cookie.pack.js

255 ms

scripts.js

scripts.js

371 ms

swfobject.js

swfobject.js

379 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

392 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

380 ms

jquery.easing-1.3.pack.js

jquery.easing-1.3.pack.js

496 ms

audioSlider.js

audioSlider.js

505 ms

wz_tooltip.js

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537 ms

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516 ms

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532 ms

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670 ms

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96 ms

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36 ms

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145 ms

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145 ms

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200 ms

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559 ms

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471 ms

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561 ms

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740 ms

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821 ms

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820 ms

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869 ms

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870 ms

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995 ms

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1000 ms

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1107 ms

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1131 ms

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1134 ms

osudy-dobreho-vojaka-svejka-za-svetove-valky-male.jpg

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1241 ms

gtm.js

gtm.js

73 ms

brisingr-male.jpg

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1241 ms

sdk.js

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166 ms

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1250 ms

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1475 ms

arrowDown.gif%22

arrowDown.gif%22

1230 ms

ecommerce.js

ecommerce.js

11 ms

collect

collect

11 ms

collect

collect

92 ms

conversion_async.js

conversion_async.js

17 ms

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111 ms

sm.js

sm.js

381 ms

zanox.js

zanox.js

373 ms

tag.js

tag.js

119 ms

retargeting.js

retargeting.js

378 ms

ld.js

ld.js

42 ms

oct.js

oct.js

95 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

31 ms

119 ms

ga-audiences

ga-audiences

76 ms

arrowDown.gif

arrowDown.gif

1124 ms

btnSzukajPoszukiwacz.gif

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1150 ms

icoPromocje.gif

icoPromocje.gif

1164 ms

rostemesknihou.png

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1199 ms

118 ms

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122 ms

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xd_arbiter.php

270 ms

133 ms

25 ms

manual-ios.png

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1129 ms

vecapture.js

vecapture.js

306 ms

cb=gapi.loaded_1

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90 ms

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120 ms

badge

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266 ms

widgets.js

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80 ms

tracking.js

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569 ms

payu.gif

payu.gif

936 ms

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264 ms

r.gif

r.gif

259 ms

button.831500944bc3eb7ea5276ccdc3f71d2e.js

button.831500944bc3eb7ea5276ccdc3f71d2e.js

174 ms

retargeting

retargeting

157 ms

event

event

18 ms

adsct

adsct

92 ms

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adsct

48 ms

postmessageRelay

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93 ms

page.php

page.php

284 ms

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221 ms

paypal.gif

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921 ms

dimoco.jpg

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926 ms

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111 ms

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979 ms

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968 ms

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44 ms

api.js

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57 ms

core:rpc:shindig.random:shindig.sha1.js

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194 ms

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138 ms

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54 ms

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123 ms

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872 ms

bckgLinkListSeparator.gif

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900 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

134 ms

dtpHsbgPEm2lVWciJZ0P-A.ttf

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148 ms

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188 ms

follow_button.6a78875565a912489e9aef879c881358.en.html

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55 ms

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876 ms

btnSzukaj.gif

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894 ms

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923 ms

EdaViBk3jnl.css

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176 ms

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215 ms

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252 ms

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324 ms

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395 ms

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858 ms

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856 ms

bckgMainPageHeader.gif

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890 ms

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106 ms

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879 ms

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901 ms

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832 ms

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830 ms

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390 ms

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843 ms

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875 ms

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870 ms

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855 ms

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813 ms

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Accessibility Review

audioteka.cz accessibility score

82

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Best Practices

audioteka.cz best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

audioteka.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

    N/A

  • Encoding

    UTF-8

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

audioteka.cz

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