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

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

xdbattery.en.alibaba.com

Page Load Speed

3 sec in total

First Response

272 ms

Resources Loaded

2.6 sec

Page Rendered

145 ms

xdbattery.en.alibaba.com screenshot

About Website

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

Beijing XD Battery Technology Co., Ltd. Products:12V LifePo4 battery series (12V 100/160/200/230/300/460 Ah), 24V LifePo4 battery series (24V 100/160/200/230/300/460 Ah), 36V LifePo4 battery series ...

Visit xdbattery.en.alibaba.com

Key Findings

We analyzed Xdbattery.en.alibaba.com page load time and found that the first response time was 272 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

xdbattery.en.alibaba.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value15.1 s

1/100

10%

TBT (Total Blocking Time)

Value7,660 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value26.9 s

0/100

10%

Network Requests Diagram

xdbattery.en.alibaba.com

272 ms

xdbattery.en.alibaba.com

171 ms

130 ms

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

144 ms

index.js

197 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Xdbattery.en.alibaba.com, 51% (25 requests) were made to Sc02.alicdn.com and 22% (11 requests) were made to S.alicdn.com. The less responsive or slowest element that took the longest time to load (2.2 sec) relates to the external source Sc02.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 842.4 kB (46%)

Content Size

1.8 MB

After Optimization

971.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Xdbattery.en.alibaba.com main page is 1.8 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. 65% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 299.5 kB

  • Original 379.9 kB
  • After minification 379.1 kB
  • After compression 80.4 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. 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 299.5 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 7 B

  • Original 6.0 kB
  • After minification 6.0 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. Xdbattery En Alibaba images are well optimized though.

JavaScript Optimization

-38%

Potential reduce by 542.9 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 885.2 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 542.9 kB or 38% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (43%)

Requests Now

47

After Optimization

27

  • AJAX
  • Images
  • JavaScript

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Xdbattery 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

xdbattery.en.alibaba.com

xdbattery.en.alibaba.com

272 ms

xdbattery.en.alibaba.com

xdbattery.en.alibaba.com

171 ms

130 ms

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

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

144 ms

index.js

index.js

197 ms

index.js

index.js

184 ms

renderHeader.js

renderHeader.js

186 ms

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Hf3c11d4120864ab9a377c564bf8c9d29y.jpg

598 ms

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519 ms

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1391 ms

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125 ms

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869 ms

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738 ms

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967 ms

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615 ms

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678 ms

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566 ms

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752 ms

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592 ms

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695 ms

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761 ms

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731 ms

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948 ms

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985 ms

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878 ms

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884 ms

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908 ms

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1014 ms

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1326 ms

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1052 ms

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1069 ms

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1354 ms

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1798 ms

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1340 ms

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1241 ms

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1277 ms

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1619 ms

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1906 ms

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Hbe0bd43cca0f46cfb27210cce1a989abW.jpg

2156 ms

awsc.js

awsc.js

75 ms

15 ms

7.gif

7.gif

189 ms

et_n.js

et_n.js

34 ms

um.js

um.js

12 ms

wu.json

wu.json

242 ms

um.json

um.json

52 ms

getUmid.do

getUmid.do

20 ms

eg.js

eg.js

2 ms

index.js

index.js

8 ms

Accessibility Review

xdbattery.en.alibaba.com accessibility score

64

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Some elements have a [tabindex] value greater than 0

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.

Best Practices

xdbattery.en.alibaba.com best practices score

83

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

xdbattery.en.alibaba.com SEO score

79

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 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 Xdbattery.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 Xdbattery.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

xdbattery.en.alibaba.com

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