Tools & Wizards About Us
51welink.com screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

51welink.com

微网通联|行业领先的云通信平台及解决方案服务商之一

Page Load Speed

39.7 sec in total

First Response

2 sec

Resources Loaded

37.4 sec

Page Rendered

258 ms

51welink.com screenshot

About Website

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

北京微网通联股份有限公司是行业领先的云通信平台及解决方案服务商之一，以云通信平台为根基，打造云通信与移动营销并轨的业务模式。云通信业务构建了以UMC云平台、GMP聚合消息服务平台和物联网服务三位一体的企业服务生态。

Visit 51welink.com

Key Findings

We analyzed 51welink.com page load time and found that the first response time was 2 sec and then it took 37.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 3 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

51welink.com performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

24/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value1.793

0/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

Network Requests Diagram

51welink.com

2032 ms

Index

1317 ms

www.51welink.com

3698 ms

css.css

2720 ms

slide.css

751 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 67% of them (45 requests) were addressed to the original 51welink.com, 9% (6 requests) were made to Dl.ntalker.com and 9% (6 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain 51welink.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 189.0 kB (18%)

Content Size

1.1 MB

After Optimization

864.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51welink.com main page is 1.1 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. 35% of websites need less resources to load. Images take 828.6 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 17.5 kB

  • Original 23.7 kB
  • After minification 21.6 kB
  • After compression 6.2 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 17.5 kB or 74% of the original size.

Image Optimization

-5%

Potential reduce by 40.9 kB

  • Original 828.6 kB
  • After minification 787.8 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 Welink images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 79.0 kB

  • Original 140.6 kB
  • After minification 135.4 kB
  • After compression 61.6 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 79.0 kB or 56% of the original size.

CSS Optimization

-85%

Potential reduce by 51.6 kB

  • Original 60.5 kB
  • After minification 52.3 kB
  • After compression 8.9 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. 51welink.com needs all CSS files to be minified and compressed as it can save up to 51.6 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (35%)

Requests Now

60

After Optimization

39

  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Welink. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

51welink.com

51welink.com

2032 ms

Index

Index

1317 ms

www.51welink.com

www.51welink.com

3698 ms

css.css

css.css

2720 ms

slide.css

slide.css

751 ms

bf.js

bf.js

1240 ms

jquery-1.5.1.min.js

jquery-1.5.1.min.js

2038 ms

modernizr-1.7.min.js

modernizr-1.7.min.js

1116 ms

js.js

js.js

1415 ms

index.js

index.js

1574 ms

ntalker.css

ntalker.css

1707 ms

ntkfstat.js

ntkfstat.js

1207 ms

pic208.jpg

pic208.jpg

750 ms

pic209.jpg

pic209.jpg

261 ms

pic211.jpg

pic211.jpg

243 ms

pic213.jpg

pic213.jpg

266 ms

pic225.jpg

pic225.jpg

496 ms

pic215.jpg

pic215.jpg

497 ms

pic217.jpg

pic217.jpg

512 ms

pic221.png

pic221.png

763 ms

62E83A1173E43BBBBC36C3AFF517

62E83A1173E43BBBBC36C3AFF517

758 ms

53E241B7A058438437D7E7BF23F4449

53E241B7A058438437D7E7BF23F4449

778 ms

1218A28C9E1B5873F7E5A3147EEE8672

1218A28C9E1B5873F7E5A3147EEE8672

1036 ms

FF423893B878842D745AD565C77E343

FF423893B878842D745AD565C77E343

1043 ms

AA2F1186A5A632B2831C5EBCDC726DE

AA2F1186A5A632B2831C5EBCDC726DE

1057 ms

E46F17C31BDEF26A3FAC47933AF9E5F

E46F17C31BDEF26A3FAC47933AF9E5F

1069 ms

994B38C2AB5A67E947AC172F38D9C333

994B38C2AB5A67E947AC172F38D9C333

1300 ms

AE9E7D113CE79A24954A6DDDD2B07A83

AE9E7D113CE79A24954A6DDDD2B07A83

1304 ms

pic224.png

pic224.png

2462 ms

WelinkErCode.jpg

WelinkErCode.jpg

1353 ms

pic200.png

pic200.png

1756 ms

pic203.png

pic203.png

6419 ms

pic205.png

pic205.png

2699 ms

pic207.png

pic207.png

2961 ms

pic233.png

pic233.png

1897 ms

pic201.png

pic201.png

2324 ms

pic223.png

pic223.png

2210 ms

sina.gif

sina.gif

2509 ms

h.js

h.js

552 ms

21.gif

21.gif

1023 ms

hm.gif

hm.gif

308 ms

Ntalker_Background.png

Ntalker_Background.png

2029 ms

Ntalker_On.png

Ntalker_On.png

2115 ms

userinfo.php

userinfo.php

980 ms

im.js

im.js

379 ms

z_stat.php

z_stat.php

3650 ms

loading.gif

loading.gif

689 ms

wdkstatus

wdkstatus

1018 ms

zh_cn.js

zh_cn.js

338 ms

chat.in.js

chat.in.js

655 ms

chaticon.png

chaticon.png

1241 ms

stat.htm

stat.htm

266 ms

core.php

core.php

812 ms

9.gif

9.gif

4011 ms

hm.js

hm.js

1466 ms

hm.js

hm.js

3353 ms

analytics.js

analytics.js

117 ms

87C423443B2AD1B874D0575F95573B25

87C423443B2AD1B874D0575F95573B25

20009 ms

dian2.png

dian2.png

1553 ms

5DAD5B8B8D43C47C4753BE09183158

5DAD5B8B8D43C47C4753BE09183158

19985 ms

dian1.png

dian1.png

1545 ms

2E4DE8F7053E72F8E10B5A08358C2C

2E4DE8F7053E72F8E10B5A08358C2C

19981 ms

6720F8A98FEA81E32B9476842DA29

6720F8A98FEA81E32B9476842DA29

8113 ms

collect

collect

20 ms

hm.gif

hm.gif

386 ms

hm.gif

hm.gif

299 ms

app.gif

app.gif

2116 ms

Accessibility Review

51welink.com accessibility score

81

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

High

Links do not have a discernible name

Best Practices

51welink.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

51welink.com SEO score

92

Search Engine Optimization Advices

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

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 51welink.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 51welink.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

51welink.com

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