Tools & Wizards About Us
email.163.com screenshot

Report Summary

  • 64

    Performance

    Renders faster than
    78% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

email.163.com

网易免费邮箱 - 你的专业电子邮局

Page Load Speed

9.3 sec in total

First Response

786 ms

Resources Loaded

8.3 sec

Page Rendered

197 ms

email.163.com screenshot

About Website

Click here to check amazing Email 163 content for China. Otherwise, check out these important facts you probably never knew about email.163.com

网易免费邮箱，你的专业电子邮局，提供以@163.com、@126.com和@yeah.net为后缀的免费邮箱。超过20年邮箱运营经验，系统快速稳定安全，支持超大附件和网盘服务。网易邮箱官方App“邮箱大师”帮您高效处理邮件，支持所有邮箱，并可在手机、Windows和Mac上多端协同使用。

Visit email.163.com

Key Findings

We analyzed Email.163.com page load time and found that the first response time was 786 ms and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

email.163.com performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

email.163.com

786 ms

email.163.com

910 ms

es5-polyfill.js

1405 ms

bundle.tracing.min.js

1681 ms

message.js

1406 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Email.163.com, 48% (20 requests) were made to Mimg.127.net and 14% (6 requests) were made to Mail.163.com. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source Mimg.127.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 26.9 kB (3%)

Content Size

870.3 kB

After Optimization

843.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Email.163.com main page is 870.3 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Javascripts take 688.8 kB which makes up the majority of the site volume.

HTML Optimization

-54%

Potential reduce by 25.6 kB

  • Original 47.6 kB
  • After minification 47.3 kB
  • After compression 22.0 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 25.6 kB or 54% of the original size.

Image Optimization

-18%

Potential reduce by 470 B

  • Original 2.6 kB
  • After minification 2.2 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. Obviously, Email 163 needs image optimization as it can save up to 470 B or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 412 B

  • Original 688.8 kB
  • After minification 688.8 kB
  • After compression 688.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 390 B

  • Original 131.3 kB
  • After minification 131.3 kB
  • After compression 130.9 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. Email.163.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 18 (51%)

Requests Now

35

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Email 163. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

email.163.com

email.163.com

786 ms

email.163.com

email.163.com

910 ms

es5-polyfill.js

es5-polyfill.js

1405 ms

bundle.tracing.min.js

bundle.tracing.min.js

1681 ms

message.js

message.js

1406 ms

html-polyfill.js

html-polyfill.js

1422 ms

1.style.c65728d2eda26176e14d.css

1.style.c65728d2eda26176e14d.css

1449 ms

style.57f97fa3f54499e44d06.css

style.57f97fa3f54499e44d06.css

1735 ms

year.js

year.js

1459 ms

mailad-sdk-0.0.19.js

mailad-sdk-0.0.19.js

1930 ms

mailscanlogin-1.2.0.js

mailscanlogin-1.2.0.js

1952 ms

email-promote.js

email-promote.js

1720 ms

vendors~index.3882d9bae6726d7f798f.js

vendors~index.3882d9bae6726d7f798f.js

2329 ms

index.78eff905e724e48e222e.js

index.78eff905e724e48e222e.js

1945 ms

gonganlogo.png

gonganlogo.png

277 ms

login_index.json

login_index.json

263 ms

getConf

getConf

1254 ms

config.do

config.do

1081 ms

form3

form3

1385 ms

index_dl2_new.html

index_dl2_new.html

1300 ms

i

i

1528 ms

get.do

get.do

278 ms

detail

detail

277 ms

fingerprint-2.1.2.min.js

fingerprint-2.1.2.min.js

264 ms

get.do

get.do

283 ms

urs.163.040e2854.css

urs.163.040e2854.css

519 ms

stat.gif

stat.gif

1155 ms

81f04801-a455-463d-a098-6e1e28d6611e

81f04801-a455-463d-a098-6e1e28d6611e

1781 ms

e06471e4-494a-43c9-b3fa-ff059ce3e0e1

e06471e4-494a-43c9-b3fa-ff059ce3e0e1

1707 ms

i

i

242 ms

webzjconf.js

webzjconf.js

167 ms

fingerprint2.min-1.6.1.js

fingerprint2.min-1.6.1.js

369 ms

preload6.htm

preload6.htm

275 ms

pp_index_dl_9d10a0e93c13e629e99c5fb42a18350d.js

pp_index_dl_9d10a0e93c13e629e99c5fb42a18350d.js

1075 ms

init

init

598 ms

bjs-1.1.6.js

bjs-1.1.6.js

526 ms

p0.77b0e0aa.js

p0.77b0e0aa.js

1899 ms

p0.764e28f9.css

p0.764e28f9.css

843 ms

i

i

242 ms

sprite_668dd9d8cbed2020ccb35961cb4f4bee.png

sprite_668dd9d8cbed2020ccb35961cb4f4bee.png

798 ms

ico-eye-disabled@2x.png

ico-eye-disabled@2x.png

739 ms

icon_chk_checkbox@2x.png

icon_chk_checkbox@2x.png

739 ms

Accessibility Review

email.163.com accessibility score

79

Accessibility Issues

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

email.163.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

email.163.com SEO score

92

Search Engine Optimization Advices

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

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Email.163.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Email.163.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

email.163.com

Open Graph description is not detected on the main page of Email 163. 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: