Report Summary

  • 37

    Performance

    Renders faster than
    58% of other websites

  • 33

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

ddc.net.cn

电动车网-国内权威的电动车,电动汽车服务平台

Page Load Speed

31.9 sec in total

First Response

1.2 sec

Resources Loaded

29.8 sec

Page Rendered

981 ms

ddc.net.cn screenshot

About Website

Visit ddc.net.cn now to see the best up-to-date Ddc content for China and also check out these interesting facts you probably never knew about ddc.net.cn

电动车网作为电动车行业门户和电动汽车行业媒体,提供电动汽车,电动车价格报价、电动车配件、电动车电池,纯电动汽车,混合动力汽车等产品服务信息,是企业产品推广、品牌宣传、拓展市场、在线交易及网络推广的首选平台.

Visit ddc.net.cn

Key Findings

We analyzed Ddc.net.cn page load time and found that the first response time was 1.2 sec and then it took 30.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

ddc.net.cn performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value9.5 s

11/100

10%

TBT (Total Blocking Time)

Value520 ms

56/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.9 s

8/100

10%

Network Requests Diagram

ddc.net.cn

1161 ms

www.ddc.net.cn

3700 ms

2014.css

6761 ms

jquery.js

3961 ms

2014.js

9034 ms

Our browser made a total of 256 requests to load all elements on the main page. We found that 39% of them (99 requests) were addressed to the original Ddc.net.cn, 42% (108 requests) were made to Img.ddc.net.cn and 9% (24 requests) were made to Mall.ddc.net.cn. The less responsive or slowest element that took the longest time to load (11.4 sec) belongs to the original domain Ddc.net.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (11%)

Content Size

11.4 MB

After Optimization

10.2 MB

In fact, the total size of Ddc.net.cn main page is 11.4 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 11.2 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 215.6 kB

  • Original 243.2 kB
  • After minification 169.2 kB
  • After compression 27.6 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. This page needs HTML code to be minified as it can gain 74.1 kB, which is 30% 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 215.6 kB or 89% of the original size.

Image Optimization

-9%

Potential reduce by 1.0 MB

  • Original 11.2 MB
  • After minification 10.1 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. Ddc images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 8.4 kB

  • Original 14.8 kB
  • After minification 14.8 kB
  • After compression 6.5 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 8.4 kB or 56% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (1%)

Requests Now

253

After Optimization

250

The browser has sent 253 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ddc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

ddc.net.cn accessibility score

33

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 [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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

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

ddc.net.cn best practices score

50

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

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

ddc.net.cn SEO score

84

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    UT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ddc.net.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed language. Our system also found out that Ddc.net.cn 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

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