Tools & Wizards About Us
vip.com screenshot

Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

vip.com

唯品会-（原Vipshop.com）特卖会：品牌特卖_确保正品_确保低价

Page Load Speed

11.4 sec in total

First Response

631 ms

Resources Loaded

10.6 sec

Page Rendered

162 ms

vip.com screenshot

About Website

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

唯品会vip购物网以1-7折超低折扣对全球各大品牌进行限时特卖，商品囊括服装、化妆品、家居、奢侈品等上千品牌。100%正品、低价、7天无理由退货。

Visit vip.com

Key Findings

We analyzed Vip.com page load time and found that the first response time was 631 ms and then it took 10.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

vip.com performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value20.5 s

0/100

25%

SI (Speed Index)

Value20.0 s

0/100

10%

TBT (Total Blocking Time)

Value3,320 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.318

36/100

15%

TTI (Time to Interactive)

Value20.3 s

2/100

10%

Network Requests Diagram

vip.com

631 ms

vip.com

854 ms

www.vip.com

2314 ms

common-hash-1c381738.css

1662 ms

index_v4-hash-02070673.css

1736 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 10% of them (4 requests) were addressed to the original Vip.com, 28% (11 requests) were made to Shop.vipstatic.com and 28% (11 requests) were made to Mapi.vip.com. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source B.appsimg.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 170.9 kB (17%)

Content Size

1.0 MB

After Optimization

832.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vip.com main page is 1.0 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. 30% of websites need less resources to load. Images take 482.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 114.4 kB

  • Original 142.8 kB
  • After minification 135.3 kB
  • After compression 28.4 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 114.4 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 5.8 kB

  • Original 482.4 kB
  • After minification 476.6 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. Vip images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 44.4 kB

  • Original 343.4 kB
  • After minification 343.4 kB
  • After compression 299.0 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 44.4 kB or 13% of the original size.

CSS Optimization

-18%

Potential reduce by 6.2 kB

  • Original 34.8 kB
  • After minification 34.8 kB
  • After compression 28.6 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. Vip.com needs all CSS files to be minified and compressed as it can save up to 6.2 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (47%)

Requests Now

36

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 18 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

vip.com

vip.com

631 ms

vip.com

vip.com

854 ms

www.vip.com

www.vip.com

2314 ms

common-hash-1c381738.css

common-hash-1c381738.css

1662 ms

index_v4-hash-02070673.css

index_v4-hash-02070673.css

1736 ms

jquery-1.10.2.js

jquery-1.10.2.js

1774 ms

core3.1.0-hash-04d66108.js

core3.1.0-hash-04d66108.js

1785 ms

getbootstrap

getbootstrap

1726 ms

common.vip.com

common.vip.com

1559 ms

v1

v1

2020 ms

15344789862278.jpg

15344789862278.jpg

1693 ms

blank.png

blank.png

229 ms

headcom_v2-hash-6a227d9a.css

headcom_v2-hash-6a227d9a.css

258 ms

sprites-hash-06206acd.png

sprites-hash-06206acd.png

232 ms

index-hash-1ef351b0.js

index-hash-1ef351b0.js

538 ms

v1

v1

1144 ms

tab

tab

1159 ms

vipFont.svg

vipFont.svg

1692 ms

vipFont.svg

vipFont.svg

1866 ms

www.vip.com

www.vip.com

474 ms

get

get

213 ms

data

data

642 ms

1714706402775.jpg

1714706402775.jpg

2352 ms

1687254297222.jpg

1687254297222.jpg

2388 ms

header_com_v2-hash-1d5ebb35.js

header_com_v2-hash-1d5ebb35.js

494 ms

check.php

check.php

1516 ms

ias_01a9e7c573329783d9f60d0036b2305a_1135x545_85.jpg

ias_01a9e7c573329783d9f60d0036b2305a_1135x545_85.jpg

1440 ms

ias_dbc6de442c877d8d1e8f829c5f675ffc_1135x545_85.jpg

ias_dbc6de442c877d8d1e8f829c5f675ffc_1135x545_85.jpg

1667 ms

v1

v1

215 ms

menu

menu

216 ms

v1

v1

234 ms

perfect-scrollbar-0.4.8.with-mousewheel.min.js

perfect-scrollbar-0.4.8.with-mousewheel.min.js

233 ms

hotwordsByGos

hotwordsByGos

438 ms

v1

v1

433 ms

header_sign-hash-0459d02c.gif

header_sign-hash-0459d02c.gif

251 ms

blank.png

blank.png

2169 ms

v1

v1

219 ms

1592278113502.png

1592278113502.png

1354 ms

1587017895494.jpg

1587017895494.jpg

1353 ms

Accessibility Review

vip.com accessibility score

77

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.

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

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

vip.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

vip.com SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

    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 Vip.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 Vip.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

vip.com

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