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51auto.com screenshot

Report Summary

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    Performance

  • 0

    Accessibility

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    Best Practices

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    SEO

51auto.com

【二手车_二手车交易市场_二手车网_二手车交易网】 - 51汽车网

Page Load Speed

39.5 sec in total

First Response

1 sec

Resources Loaded

38.2 sec

Page Rendered

286 ms

51auto.com screenshot

About Website

Welcome to 51auto.com homepage info - get ready to check 51 Auto best content for China right away, or after learning these important things about 51auto.com

51汽车网,二手车,真实全面的二手车交易市场车源信息,图片,二手车市场报价及参考价格,拥有精准权威的二手车评估系统,是专业的二手车交易平台,提供二手车报价,二手车评估,商家,认证,个人二手车信息,买卖二手车就上51汽车

Visit 51auto.com

Key Findings

We analyzed 51auto.com page load time and found that the first response time was 1 sec and then it took 38.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

51auto.com performance score

0

Network Requests Diagram

morecity.htm

1035 ms

MoreCity

13268 ms

jquery-1.7.2.js

6603 ms

global_51auto.js

8331 ms

index_51auto.js

3894 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original 51auto.com, 47% (24 requests) were made to Static.51auto.com and 39% (20 requests) were made to Picture.51auto.com. The less responsive or slowest element that took the longest time to load (15 sec) relates to the external source Picture.51auto.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 955.9 kB (48%)

Content Size

2.0 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51auto.com main page is 2.0 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. 20% of websites need less resources to load. Images take 866.8 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 142.9 kB

  • Original 168.2 kB
  • After minification 146.8 kB
  • After compression 25.3 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 21.4 kB, which is 13% 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 142.9 kB or 85% of the original size.

Image Optimization

-1%

Potential reduce by 11.6 kB

  • Original 866.8 kB
  • After minification 855.2 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. 51 Auto images are well optimized though.

JavaScript Optimization

-85%

Potential reduce by 552.5 kB

  • Original 653.1 kB
  • After minification 405.3 kB
  • After compression 100.6 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 552.5 kB or 85% of the original size.

CSS Optimization

-81%

Potential reduce by 248.9 kB

  • Original 306.6 kB
  • After minification 291.1 kB
  • After compression 57.7 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. 51auto.com needs all CSS files to be minified and compressed as it can save up to 248.9 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (29%)

Requests Now

49

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Auto. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

morecity.htm

morecity.htm

1035 ms

MoreCity

MoreCity

13268 ms

jquery-1.7.2.js

jquery-1.7.2.js

6603 ms

global_51auto.js

global_51auto.js

8331 ms

index_51auto.js

index_51auto.js

3894 ms

jquery.dimensions.js

jquery.dimensions.js

5068 ms

jquery.suggest.js

jquery.suggest.js

4812 ms

jser_common.css

jser_common.css

4909 ms

global_51auto_v1.css

global_51auto_v1.css

5259 ms

area_more.css

area_more.css

5498 ms

jquery.tabs.min.js

jquery.tabs.min.js

1342 ms

jquery.slide.min.js

jquery.slide.min.js

1349 ms

searchcity.js

searchcity.js

8642 ms

jquery-ui-dialog.css

jquery-ui-dialog.css

546 ms

jquery-ui-transfer.css

jquery-ui-transfer.css

436 ms

smoothConfirm.css

smoothConfirm.css

459 ms

slideImg.css

slideImg.css

433 ms

weixin.jpg

weixin.jpg

1696 ms

logo.png

logo.png

1347 ms

20160202101208671001-mid.jpg

20160202101208671001-mid.jpg

7540 ms

slider-arrow.png

slider-arrow.png

5399 ms

pic820160120160145-vYZD5-mid.jpg

pic820160120160145-vYZD5-mid.jpg

7505 ms

pic820160105111942-KqAz5-mid.jpg

pic820160105111942-KqAz5-mid.jpg

7531 ms

pic820160107142913-gflH7-mid.JPG

pic820160107142913-gflH7-mid.JPG

7519 ms

pic820160103142133-BGkTV-mid.jpg

pic820160103142133-BGkTV-mid.jpg

8344 ms

pic820160215175324-0F9g4-mid.JPG

pic820160215175324-0F9g4-mid.JPG

8416 ms

pic820160109155942-KvzrV-mid.JPG

pic820160109155942-KvzrV-mid.JPG

9536 ms

pic820160109131649-SZZtS-mid.jpg

pic820160109131649-SZZtS-mid.jpg

7972 ms

20160224114818237004-mid.jpg

20160224114818237004-mid.jpg

8899 ms

pic820160225183503-uMeV0-mid.jpg

pic820160225183503-uMeV0-mid.jpg

14978 ms

pic820160114094625-fN1Zt-mid.jpg

pic820160114094625-fN1Zt-mid.jpg

8431 ms

pic820160219102214-O8dXD-mid.jpg

pic820160219102214-O8dXD-mid.jpg

14582 ms

pic820160111113830-1hFpo-mid.jpg

pic820160111113830-1hFpo-mid.jpg

9307 ms

pic820160104173259-8MeDJ-mid.jpg

pic820160104173259-8MeDJ-mid.jpg

10301 ms

pic820160101193810-9K7yU-mid.jpg

pic820160101193810-9K7yU-mid.jpg

10713 ms

pic820160106113722-V8c5y-mid.jpg

pic820160106113722-V8c5y-mid.jpg

10934 ms

pic820160120165341-3EMgP-mid.jpg

pic820160120165341-3EMgP-mid.jpg

12126 ms

pic820160127154833-uc4ou-rz-mid.jpg

pic820160127154833-uc4ou-rz-mid.jpg

11234 ms

20160323103524204004-mid.jpg

20160323103524204004-mid.jpg

11603 ms

pic820160317130301-eQBQ5-mid.jpg

pic820160317130301-eQBQ5-mid.jpg

14173 ms

header_bg.jpg

header_bg.jpg

751 ms

icon_pack.gif

icon_pack.gif

447 ms

dialog_top.jpg

dialog_top.jpg

1694 ms

andriod.png

andriod.png

1567 ms

apple.png

apple.png

979 ms

arrow_blue.png

arrow_blue.png

1699 ms

arrow_greyup.png

arrow_greyup.png

2275 ms

xinlai.gif

xinlai.gif

4377 ms

footer_bg.png

footer_bg.png

2273 ms

jquery.cookie.min.js

jquery.cookie.min.js

921 ms

jsZonePinyinFunction.jsp

jsZonePinyinFunction.jsp

2280 ms

SEO Factors

51auto.com SEO score

0

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51auto.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that 51auto.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

51auto.com

Open Graph description is not detected on the main page of 51 Auto. 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: