Tools & Wizards About Us
21vip.com.cn screenshot

Report Summary

  • 64

    Performance

    Renders faster than
    78% of other websites

  • 55

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

21vip.com.cn

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Page Load Speed

35.8 sec in total

First Response

979 ms

Resources Loaded

34.1 sec

Page Rendered

719 ms

21vip.com.cn screenshot

About Website

Visit 21vip.com.cn now to see the best up-to-date 21 Vip content and also check out these interesting facts you probably never knew about 21vip.com.cn

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Visit 21vip.com.cn

Key Findings

We analyzed 21vip.com.cn page load time and found that the first response time was 979 ms and then it took 34.8 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. Unfortunately, there were 5 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

21vip.com.cn performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.058

98/100

15%

TTI (Time to Interactive)

Value5.0 s

76/100

10%

Network Requests Diagram

21vip.com.cn

979 ms

style.css

1155 ms

jquery.minb.js

1262 ms

shoucang.js

488 ms

utils.js

483 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 89% of them (85 requests) were addressed to the original 21vip.com.cn, 2% (2 requests) were made to Res.daiyanbao.com and 1% (1 request) were made to Znsv.baidu.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain 21vip.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 748.8 kB (12%)

Content Size

6.0 MB

After Optimization

5.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 21vip.com.cn main page is 6.0 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. 45% of websites need less resources to load. Images take 5.6 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 59.0 kB

  • Original 71.6 kB
  • After minification 67.4 kB
  • After compression 12.6 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 59.0 kB or 82% of the original size.

Image Optimization

-8%

Potential reduce by 429.0 kB

  • Original 5.6 MB
  • After minification 5.2 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. 21 Vip images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 140.3 kB

  • Original 222.9 kB
  • After minification 219.2 kB
  • After compression 82.6 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 140.3 kB or 63% of the original size.

CSS Optimization

-87%

Potential reduce by 120.4 kB

  • Original 138.8 kB
  • After minification 110.7 kB
  • After compression 18.4 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. 21vip.com.cn needs all CSS files to be minified and compressed as it can save up to 120.4 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (24%)

Requests Now

88

After Optimization

67

  • Images
  • JavaScript
  • CSS

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 21 Vip. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

21vip.com.cn

21vip.com.cn

979 ms

style.css

style.css

1155 ms

jquery.minb.js

jquery.minb.js

1262 ms

shoucang.js

shoucang.js

488 ms

utils.js

utils.js

483 ms

jquery.mina.js

jquery.mina.js

1423 ms

lrtk.css

lrtk.css

792 ms

jquery.js

jquery.js

1692 ms

lrtk.js

lrtk.js

768 ms

onlineservice20130718.js

onlineservice20130718.js

1072 ms

posfixed.js

posfixed.js

1063 ms

0371-56708331.js

0371-56708331.js

4973 ms

logo.gif

logo.gif

679 ms

biao8.gif

biao8.gif

1127 ms

01.jpg

01.jpg

10916 ms

02.jpg

02.jpg

9075 ms

03.jpg

03.jpg

11296 ms

04.jpg

04.jpg

9744 ms

05.jpg

05.jpg

9458 ms

001.jpg

001.jpg

3719 ms

002.jpg

002.jpg

6289 ms

003.jpg

003.jpg

9552 ms

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11014 ms

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13277 ms

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12332 ms

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14362 ms

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12537 ms

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12004 ms

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20395 ms

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16101 ms

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13051 ms

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13525 ms

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15145 ms

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14295 ms

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16065 ms

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16653 ms

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14686 ms

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14948 ms

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15921 ms

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18312 ms

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16602 ms

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19008 ms

2-150619113313-lp.jpg

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16834 ms

2-150619113313.jpg

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20301 ms

js

js

2241 ms

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19223 ms

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2-15100G20A5556.jpg

18946 ms

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19229 ms

2-15100G14K3140.jpg

2-15100G14K3140.jpg

19726 ms

2-15100G14G2560.jpg

2-15100G14G2560.jpg

19629 ms

stat.php

stat.php

1531 ms

2-15100G14632G8.jpg

2-15100G14632G8.jpg

19833 ms

stat.htm

stat.htm

369 ms

core.php

core.php

956 ms

9.gif

9.gif

1002 ms

pic1.gif

pic1.gif

1219 ms

2-15100G1455R11.jpg

2-15100G1455R11.jpg

17431 ms

daiyanbao_com_1.1.3.min.js

daiyanbao_com_1.1.3.min.js

1386 ms

app.gif

app.gif

1135 ms

loadding.gif

loadding.gif

2834 ms

2-15100G14434462.jpg

2-15100G14434462.jpg

16108 ms

2-15100G1435D51.jpg

2-15100G1435D51.jpg

12696 ms

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12625 ms

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12897 ms

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12014 ms

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13633 ms

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14209 ms

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12438 ms

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13779 ms

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15918 ms

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19857 ms

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13119 ms

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13963 ms

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13912 ms

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16521 ms

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14832 ms

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13478 ms

ico-01.jpg

ico-01.jpg

13436 ms

ico-02.jpg

ico-02.jpg

13962 ms

ico-03.jpg

ico-03.jpg

13316 ms

ico-04.jpg

ico-04.jpg

13227 ms

ico-05.jpg

ico-05.jpg

13961 ms

31c5b712fe7d46499ce802935340f288.gif

31c5b712fe7d46499ce802935340f288.gif

13064 ms

yyzz.png

yyzz.png

13358 ms

sm_124x47.png

sm_124x47.png

11859 ms

gw_124x47.png

gw_124x47.png

11109 ms

xml_rss2.gif

xml_rss2.gif

11254 ms

top_ico.png

top_ico.png

11224 ms

ico_i.gif

ico_i.gif

10702 ms

meun_bg.gif

meun_bg.gif

10278 ms

lbtb.png

lbtb.png

10479 ms

biao5.gif

biao5.gif

10624 ms

biao8.gif

biao8.gif

10746 ms

a.png

a.png

10526 ms

sprite.png

sprite.png

10164 ms

Accessibility Review

21vip.com.cn accessibility score

55

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

Links do not have a discernible name

Best Practices

21vip.com.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

SEO Factors

21vip.com.cn SEO score

62

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 21vip.com.cn 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 21vip.com.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

21vip.com.cn

Open Graph description is not detected on the main page of 21 Vip. 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: