Access 51vv.com. VV娱乐社区-多人在线视频聊天室交友网站

51vv.com screenshot

24

Performance

Renders faster than
43% of other websites
59

Accessibility

Visual factors better than
that of 26% of websites
67

Best Practices

More advanced features
available than in
24% of websites
58

SEO

Google-friendlier than
21% of websites

First Response

869 ms

Resources Loaded

14.1 sec

Page Rendered

285 ms

51vv.com screenshot

About Website

Click here to check amazing 51 Vv content for China. Otherwise, check out these important facts you probably never knew about 51vv.com

VV娱乐社区是多人在线视频聊天室交友网站,它集即时通信,在线卡拉OK,多人视频聊天功能于一身的视频软件,可为网友提供万人同时在线的视频交友,网络教学,舞蹈健身,在线KTV,股票财经,朗诵艺术,戏曲表演等众多学习娱乐平台。

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Key Findings

We analyzed 51vv.com page load time and found that the first response time was 869 ms and then it took 14.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value1,370 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value9.4 s

31/100

10%

51vv.com

869 ms

www.51vv.com

1345 ms

comm.css

755 ms

comm-part.css

765 ms

index_new.css

760 ms

Our browser made a total of 158 requests to load all elements on the main page. We found that 91% of them (143 requests) were addressed to the original 51vv.com, 3% (5 requests) were made to Txcdn1-file-m.mvbox.cn and 2% (3 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain 51vv.com.

Content Size

3.4 MB

After Optimization

3.0 MB

In fact, the total size of 51vv.com main page is 3.4 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. 65% of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 112.4 kB

Original 127.9 kB
After minification 72.9 kB
After compression 15.5 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 55.0 kB, which is 43% 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 112.4 kB or 88% of the original size.

Image Optimization

-5%

Potential reduce by 138.1 kB

Original 3.0 MB
After minification 2.9 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. 51 Vv images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 111.2 kB

Original 223.4 kB
After minification 223.1 kB
After compression 112.2 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 111.2 kB or 50% of the original size.

CSS Optimization

-25%

Potential reduce by 4.9 kB

Original 19.4 kB
After minification 19.4 kB
After compression 14.6 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. 51vv.com needs all CSS files to be minified and compressed as it can save up to 4.9 kB or 25% of the original size.

Requests Now

154

After Optimization

120

The browser has sent 154 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Vv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

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 51vv.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 51vv.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

51vv.com

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