Tools & Wizards About Us
albatrosmedia.cz screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

albatrosmedia.cz

Albatrosmedia.cz - knihy, internetové knihkupectví | Albatrosmedia.cz

Page Load Speed

10 sec in total

First Response

1.4 sec

Resources Loaded

8.3 sec

Page Rendered

401 ms

albatrosmedia.cz screenshot

About Website

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

Internetové knihkupectví Albatrosmedia.cz - tisíce knih skladem se slevou přímo od vydavatele. K nákupu nad 800 Kč doprava a knižní dárek zdarma. Knihy pro děti, beletrie pro dospělé, odborná a naučná...

Visit albatrosmedia.cz

Key Findings

We analyzed Albatrosmedia.cz page load time and found that the first response time was 1.4 sec and then it took 8.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

albatrosmedia.cz performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value21.7 s

0/100

25%

SI (Speed Index)

Value15.8 s

0/100

10%

TBT (Total Blocking Time)

Value710 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.077

95/100

15%

TTI (Time to Interactive)

Value22.7 s

1/100

10%

Network Requests Diagram

albatrosmedia.cz

1370 ms

www.albatrosmedia.cz

940 ms

screen.css

390 ms

targetblank.js

259 ms

jquery.js

519 ms

Our browser made a total of 142 requests to load all elements on the main page. We found that 35% of them (49 requests) were addressed to the original Albatrosmedia.cz, 32% (46 requests) were made to Storage.albatrosmedia.cz and 10% (14 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (5.3 sec) relates to the external source Storage.albatrosmedia.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 229.1 kB (16%)

Content Size

1.4 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Albatrosmedia.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. 60% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 72.0 kB

  • Original 89.4 kB
  • After minification 74.2 kB
  • After compression 17.4 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 15.2 kB, which is 17% 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 72.0 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 55.9 kB

  • Original 1.1 MB
  • After minification 1.0 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. Albatrosmedia images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 51.3 kB

  • Original 216.5 kB
  • After minification 212.5 kB
  • After compression 165.2 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 51.3 kB or 24% of the original size.

CSS Optimization

-83%

Potential reduce by 49.9 kB

  • Original 60.0 kB
  • After minification 50.3 kB
  • After compression 10.1 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. Albatrosmedia.cz needs all CSS files to be minified and compressed as it can save up to 49.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (31%)

Requests Now

138

After Optimization

95

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 138 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Albatrosmedia. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

albatrosmedia.cz

albatrosmedia.cz

1370 ms

www.albatrosmedia.cz

www.albatrosmedia.cz

940 ms

screen.css

screen.css

390 ms

targetblank.js

targetblank.js

259 ms

jquery.js

jquery.js

519 ms

swfobject.js

swfobject.js

260 ms

nw.js

nw.js

741 ms

eucookies.css

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135 ms

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65 ms

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2433 ms

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268 ms

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161 ms

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162 ms

inst.png

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144 ms

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145 ms

rssicon.jpg

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294 ms

sdk.js

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45 ms

gtm.js

gtm.js

93 ms

logo.png

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525 ms

bgMenu.gif

bgMenu.gif

406 ms

bgMenuPolozkaTop.gif

bgMenuPolozkaTop.gif

279 ms

sipka.gif

sipka.gif

393 ms

vyhledavani2.gif

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412 ms

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408 ms

z1.gif

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484 ms

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522 ms

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535 ms

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661 ms

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663 ms

main_menu.gif

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666 ms

menubalicky.png

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739 ms

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1291 ms

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797 ms

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793 ms

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865 ms

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916 ms

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917 ms

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928 ms

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924 ms

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993 ms

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1052 ms

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220 ms

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25 ms

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50 ms

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79 ms

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49 ms

retargeting.js

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249 ms

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57 ms

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40 ms

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926 ms

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922 ms

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984 ms

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118 ms

retargeting

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131 ms

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792 ms

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Accessibility Review

albatrosmedia.cz accessibility score

69

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

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

Form elements do not have associated labels

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

albatrosmedia.cz best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

albatrosmedia.cz SEO score

88

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

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 Albatrosmedia.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 Albatrosmedia.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

albatrosmedia.cz

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