Tools & Wizards About Us
ddw.en.alibaba.com screenshot

Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

ddw.en.alibaba.com

Company Overview - Shenzhen DDW Technology Co., Ltd.

Page Load Speed

7 sec in total

First Response

1.4 sec

Resources Loaded

3.8 sec

Page Rendered

1.8 sec

ddw.en.alibaba.com screenshot

About Website

Visit ddw.en.alibaba.com now to see the best up-to-date DDW En Alibaba content for China and also check out these interesting facts you probably never knew about ddw.en.alibaba.com

Shenzhen DDW Technology Co., Ltd. Products:Rental Led Screen, COB Led Screen, Indoor Outdoor Led Screen, Flexible Led Display, Transparent Led Display

Visit ddw.en.alibaba.com

Key Findings

We analyzed Ddw.en.alibaba.com page load time and found that the first response time was 1.4 sec and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

ddw.en.alibaba.com performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value13.3 s

2/100

10%

TBT (Total Blocking Time)

Value9,160 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.543

13/100

15%

TTI (Time to Interactive)

Value27.0 s

0/100

10%

Network Requests Diagram

ddw.en.alibaba.com

1372 ms

ddw.en.alibaba.com

265 ms

31 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

274 ms

O1CN01Xt4rje1w9QKVzNB6S_!!6000000006265-2-tps-3084-90.png

25 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 7% of them (2 requests) were addressed to the original Ddw.en.alibaba.com, 48% (13 requests) were made to S.alicdn.com and 11% (3 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 840.8 kB (44%)

Content Size

1.9 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Ddw.en.alibaba.com main page is 1.9 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 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 448.1 kB

  • Original 542.7 kB
  • After minification 541.9 kB
  • After compression 94.6 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 448.1 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 7 B

  • Original 34.7 kB
  • After minification 34.6 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. DDW En Alibaba images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 392.7 kB

  • Original 1.3 MB
  • After minification 1.3 MB
  • After compression 929.9 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 392.7 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (44%)

Requests Now

25

After Optimization

14

  • AJAX
  • Images
  • JavaScript

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DDW En Alibaba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

ddw.en.alibaba.com

ddw.en.alibaba.com

1372 ms

ddw.en.alibaba.com

ddw.en.alibaba.com

265 ms

31 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

274 ms

O1CN01Xt4rje1w9QKVzNB6S_!!6000000006265-2-tps-3084-90.png

O1CN01Xt4rje1w9QKVzNB6S_!!6000000006265-2-tps-3084-90.png

25 ms

index.js

index.js

292 ms

index.js

index.js

275 ms

renderHeader.js

renderHeader.js

282 ms

H1927959976c44ef3bf8c2f97a45fc052E.jpg

H1927959976c44ef3bf8c2f97a45fc052E.jpg

1464 ms

H57a56d644fec42e9ae114ad94b2b4ee86.jpg

H57a56d644fec42e9ae114ad94b2b4ee86.jpg

1069 ms

H56d27069c674461db6acf411e79c4c6bX.jpg

H56d27069c674461db6acf411e79c4c6bX.jpg

2340 ms

awsc.js

awsc.js

268 ms

5 ms

7.gif

7.gif

307 ms

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

120 ms

He290a8deec914c4e95a1c2644e6ec559e.png

He290a8deec914c4e95a1c2644e6ec559e.png

586 ms

Hbedb3698414b49c6a970788d9e8db301W.jpg

Hbedb3698414b49c6a970788d9e8db301W.jpg

140 ms

He85f7769f7894b41b487ce3323bcf3dfs.jpg

He85f7769f7894b41b487ce3323bcf3dfs.jpg

717 ms

Hb94b3858f9a944c3b4cf1ba012d2055d5.jpg

Hb94b3858f9a944c3b4cf1ba012d2055d5.jpg

949 ms

H7d599d5075964723ad5aac1623b0d9200.jpg

H7d599d5075964723ad5aac1623b0d9200.jpg

715 ms

et_n.js

et_n.js

6 ms

um.js

um.js

71 ms

wu.json

wu.json

398 ms

um.json

um.json

54 ms

getUmid.do

getUmid.do

636 ms

eg.js

eg.js

4 ms

index.js

index.js

4 ms

Accessibility Review

ddw.en.alibaba.com accessibility score

66

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] 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.

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

ddw.en.alibaba.com best practices score

92

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

Missing source maps for large first-party JavaScript

SEO Factors

ddw.en.alibaba.com SEO score

86

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

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 Ddw.en.alibaba.com 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 Ddw.en.alibaba.com 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

ddw.en.alibaba.com

Open Graph data is detected on the main page of DDW En Alibaba. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: