Tools & Wizards About Us
alphatraz.cz screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

alphatraz.cz

Velkoobchod, Suvenýry, Dárky

Page Load Speed

8.8 sec in total

First Response

1.5 sec

Resources Loaded

6.9 sec

Page Rendered

433 ms

alphatraz.cz screenshot

About Website

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

Velkoobchod, Suvenýry, Dárky

Visit alphatraz.cz

Key Findings

We analyzed Alphatraz.cz page load time and found that the first response time was 1.5 sec and then it took 7.3 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

alphatraz.cz performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value340 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0.111

87/100

15%

TTI (Time to Interactive)

Value7.3 s

50/100

10%

Network Requests Diagram

alphatraz.cz

1509 ms

alfatraz.css

116 ms

custom.js

217 ms

jquery-latest.min.js

441 ms

jqueryui187.js

560 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that 98% of them (122 requests) were addressed to the original Alphatraz.cz, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Alphatraz.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (12%)

Content Size

10.1 MB

After Optimization

8.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alphatraz.cz main page is 10.1 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 9.2 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 63.3 kB

  • Original 71.1 kB
  • After minification 59.0 kB
  • After compression 7.8 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 12.1 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 63.3 kB or 89% of the original size.

Image Optimization

-5%

Potential reduce by 483.0 kB

  • Original 9.2 MB
  • After minification 8.8 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. Alphatraz images are well optimized though.

JavaScript Optimization

-82%

Potential reduce by 625.4 kB

  • Original 759.3 kB
  • After minification 448.9 kB
  • After compression 133.9 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 625.4 kB or 82% of the original size.

CSS Optimization

-83%

Potential reduce by 43.9 kB

  • Original 52.6 kB
  • After minification 44.0 kB
  • After compression 8.8 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. Alphatraz.cz needs all CSS files to be minified and compressed as it can save up to 43.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (14%)

Requests Now

123

After Optimization

106

  • Images
  • JavaScript
  • CSS

The browser has sent 123 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alphatraz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

alphatraz.cz

alphatraz.cz

1509 ms

alfatraz.css

alfatraz.css

116 ms

custom.js

custom.js

217 ms

jquery-latest.min.js

jquery-latest.min.js

441 ms

jqueryui187.js

jqueryui187.js

560 ms

jquery-contained-sticky-scroll-min.js

jquery-contained-sticky-scroll-min.js

218 ms

jquery.mousewheel-3.0.4.pack.js

jquery.mousewheel-3.0.4.pack.js

224 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

225 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

325 ms

demo_table.css

demo_table.css

326 ms

jquery.dataTables.js

jquery.dataTables.js

603 ms

jquery.dataTables.columnFilter.js

jquery.dataTables.columnFilter.js

330 ms

bjqs-1.3.js

bjqs-1.3.js

435 ms

bjqs.css

bjqs.css

438 ms

ga.js

ga.js

63 ms

header.png

header.png

108 ms

page-shadow.png

page-shadow.png

111 ms

logo.png

logo.png

113 ms

phone.png

phone.png

111 ms

envelope.png

envelope.png

118 ms

search_btn.png

search_btn.png

108 ms

bg_prihlaseni.png

bg_prihlaseni.png

213 ms

bg_registrace.png

bg_registrace.png

215 ms

cart_icon.png

cart_icon.png

218 ms

cart_btn.png

cart_btn.png

219 ms

bg_menu.png

bg_menu.png

220 ms

flag-czech.gif

flag-czech.gif

223 ms

flag-eur.gif

flag-eur.gif

317 ms

sidebar_menu.png

sidebar_menu.png

322 ms

sidebar_arrow.png

sidebar_arrow.png

325 ms

callout1.png

callout1.png

326 ms

callout2.png

callout2.png

327 ms

newsletter.png

newsletter.png

332 ms

bannery30.gif

bannery30.gif

947 ms

bannery25.gif

bannery25.gif

748 ms

bannery29.gif

bannery29.gif

758 ms

bannery16.jpg

bannery16.jpg

756 ms

bannery26.png

bannery26.png

1067 ms

bannery28.gif

bannery28.gif

666 ms

bannery22.png

bannery22.png

889 ms

bg_btn.png

bg_btn.png

855 ms

news-sales-header-item-active.png

news-sales-header-item-active.png

865 ms

news-sales-header-item.png

news-sales-header-item.png

867 ms

news-sales-content.png

news-sales-content.png

962 ms

kategorie39.gif

kategorie39.gif

1091 ms

pruhledny.png

pruhledny.png

973 ms

kategorie3.jpg

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1116 ms

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1274 ms

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1507 ms

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1627 ms

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1142 ms

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__utm.gif

15 ms

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1208 ms

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1460 ms

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1403 ms

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1278 ms

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1423 ms

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1484 ms

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1410 ms

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1833 ms

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1428 ms

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1464 ms

kategorie44.jpg

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1489 ms

kategorie1.jpg

kategorie1.jpg

1512 ms

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1532 ms

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1433 ms

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1472 ms

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1593 ms

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1518 ms

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1644 ms

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1372 ms

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1320 ms

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1419 ms

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1493 ms

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1342 ms

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1502 ms

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1712 ms

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1396 ms

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1450 ms

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1345 ms

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1596 ms

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1331 ms

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1437 ms

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1698 ms

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1437 ms

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1231 ms

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1418 ms

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1365 ms

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1379 ms

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2050 ms

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1408 ms

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1388 ms

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1372 ms

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1549 ms

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1785 ms

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1750 ms

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1503 ms

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1376 ms

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1642 ms

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1609 ms

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1786 ms

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1658 ms

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1815 ms

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1540 ms

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1680 ms

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1817 ms

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1542 ms

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1808 ms

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1666 ms

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1915 ms

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1565 ms

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1664 ms

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1670 ms

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1787 ms

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2140 ms

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1904 ms

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1898 ms

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1560 ms

fb.png

fb.png

1645 ms

bg_footer.png

bg_footer.png

1581 ms

Accessibility Review

alphatraz.cz accessibility score

88

Accessibility Issues

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

Links do not have a discernible name

Best Practices

alphatraz.cz best practices score

58

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

alphatraz.cz SEO score

100

Search Engine Optimization Advices

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

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

alphatraz.cz

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