Tools & Wizards About Us
aliexpres.cz screenshot

Report Summary

  • 7

    Performance

    Renders faster than
    22% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

aliexpres.cz

AliExpress - Online Shopping for Popular Electronics, Fashion, Home & Garden, Toys & Sports, Automobiles and More products - AliExpress

Page Load Speed

3.3 sec in total

First Response

357 ms

Resources Loaded

2.8 sec

Page Rendered

124 ms

aliexpres.cz screenshot

About Website

Welcome to aliexpres.cz homepage info - get ready to check Ali Expres best content right away, or after learning these important things about aliexpres.cz

Passion shouldn't cost a fortune. On AliExpress, shop online for over 111 million quality deals on Fashion, Accessories, Computer Electronics, Toys, Tools, Home Improvement, Home Appliances, Home & Ga...

Visit aliexpres.cz

Key Findings

We analyzed Aliexpres.cz page load time and found that the first response time was 357 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

aliexpres.cz performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.6 s

0/100

25%

SI (Speed Index)

Value14.7 s

1/100

10%

TBT (Total Blocking Time)

Value2,860 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.302

39/100

15%

TTI (Time to Interactive)

Value24.5 s

0/100

10%

Network Requests Diagram

aliexpres.cz

357 ms

a0190sc.php

347 ms

aliexpress.com

979 ms

www.aliexpress.us

40 ms

best.aliexpress.com

349 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Aliexpres.cz, 43% (13 requests) were made to Assets.alicdn.com and 40% (12 requests) were made to Ae01.alicdn.com. The less responsive or slowest element that took the longest time to load (979 ms) relates to the external source Aliexpress.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 734.0 kB (63%)

Content Size

1.2 MB

After Optimization

425.8 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Aliexpres.cz main page is 1.2 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. 35% of websites need less resources to load. Javascripts take 629.9 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 215.6 kB

  • Original 248.7 kB
  • After minification 240.2 kB
  • After compression 33.1 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 215.6 kB or 87% of the original size.

JavaScript Optimization

-46%

Potential reduce by 287.8 kB

  • Original 629.9 kB
  • After minification 629.9 kB
  • After compression 342.1 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 287.8 kB or 46% of the original size.

CSS Optimization

-82%

Potential reduce by 230.6 kB

  • Original 281.1 kB
  • After minification 281.0 kB
  • After compression 50.6 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. Aliexpres.cz needs all CSS files to be minified and compressed as it can save up to 230.6 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (77%)

Requests Now

22

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ali Expres. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

aliexpres.cz

aliexpres.cz

357 ms

a0190sc.php

a0190sc.php

347 ms

aliexpress.com

aliexpress.com

979 ms

www.aliexpress.us

www.aliexpress.us

40 ms

best.aliexpress.com

best.aliexpress.com

349 ms

index.css

index.css

76 ms

ae-header.css

ae-header.css

86 ms

ae-header.js

ae-header.js

167 ms

index.css

index.css

110 ms

index.js

index.js

120 ms

_cross_page_loader_.js

_cross_page_loader_.js

107 ms

index.css

index.css

107 ms

index.js

index.js

120 ms

index.js

index.js

146 ms

index.js

index.js

195 ms

10x10.png

10x10.png

143 ms

240x168.png

240x168.png

113 ms

65x70.gif

65x70.gif

138 ms

20x20.png

20x20.png

143 ms

H4d523ca938f84764ab9970676846ceddE.png

H4d523ca938f84764ab9970676846ceddE.png

59 ms

H3f646a8410084ae39ee8c979ca1409a2K.png

H3f646a8410084ae39ee8c979ca1409a2K.png

77 ms

H92546404c05349bd9a64fa2eb268541e1.png

H92546404c05349bd9a64fa2eb268541e1.png

107 ms

Hf5aa563a0e8e4c7e93b6340dd38ebd30B.png

Hf5aa563a0e8e4c7e93b6340dd38ebd30B.png

103 ms

Heb2cbbfeb7bf407f9cbe7fdd8cdd82d5b.png

Heb2cbbfeb7bf407f9cbe7fdd8cdd82d5b.png

104 ms

H907757fdad184e31a1b58bd6507666deo.png

H907757fdad184e31a1b58bd6507666deo.png

105 ms

H6dea52a7c0df4bd4846cec6add0060acM.png

H6dea52a7c0df4bd4846cec6add0060acM.png

105 ms

40x40.png

40x40.png

101 ms

mem8YaGs126MiZpBA-U1UQ.woff

mem8YaGs126MiZpBA-U1UQ.woff

20 ms

mem5YaGs126MiZpBA-UNirk-Vg.woff

mem5YaGs126MiZpBA-UNirk-Vg.woff

21 ms

mem5YaGs126MiZpBA-UN7rg-Vg.woff

mem5YaGs126MiZpBA-UN7rg-Vg.woff

3 ms

Accessibility Review

aliexpres.cz accessibility score

64

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 valid value for its [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

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

aliexpres.cz best practices score

67

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

aliexpres.cz SEO score

71

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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

High

Document doesn't have a valid hreflang

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aliexpres.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Aliexpres.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

aliexpres.cz

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