Tools & Wizards About Us
mail.tju.edu.cn screenshot

Report Summary

  • 67

    Performance

    Renders faster than
    80% of other websites

  • 57

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

mail.tju.edu.cn

天津大学邮件系统

Page Load Speed

13.1 sec in total

First Response

2.2 sec

Resources Loaded

10.8 sec

Page Rendered

120 ms

mail.tju.edu.cn screenshot

About Website

Welcome to mail.tju.edu.cn homepage info - get ready to check Mail Tju best content for China right away, or after learning these important things about mail.tju.edu.cn

天津大学，邮件，天津大学邮件，天津大学邮件系统

Visit mail.tju.edu.cn

Key Findings

We analyzed Mail.tju.edu.cn page load time and found that the first response time was 2.2 sec and then it took 11 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

mail.tju.edu.cn performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

81/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value4.5 s

83/100

10%

Network Requests Diagram

mail.tju.edu.cn

2181 ms

loginjs.jsp

1093 ms

head_back_01.jpg

2235 ms

index1_01_01.jpg

2747 ms

index1_01_02.jpg

2754 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Mail.tju.edu.cn, 96% (47 requests) were made to Mimghz.qiye.163.com and 2% (1 request) were made to Mailhz.qiye.163.com. The less responsive or slowest element that took the longest time to load (6.1 sec) relates to the external source Mimghz.qiye.163.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 35.7 kB (24%)

Content Size

149.1 kB

After Optimization

113.5 kB

  • HTML
  • Images

In fact, the total size of Mail.tju.edu.cn main page is 149.1 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. Only 10% of websites need less resources to load. Images take 138.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 8.0 kB

  • Original 10.2 kB
  • After minification 10.2 kB
  • After compression 2.2 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 8.0 kB or 79% of the original size.

Image Optimization

-20%

Potential reduce by 27.6 kB

  • Original 138.9 kB
  • After minification 111.3 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, Mail Tju needs image optimization as it can save up to 27.6 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

Number of requests can be reduced by 23 (48%)

Requests Now

48

After Optimization

25

  • Images
  • JavaScript

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mail Tju. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

mail.tju.edu.cn

mail.tju.edu.cn

2181 ms

loginjs.jsp

loginjs.jsp

1093 ms

head_back_01.jpg

head_back_01.jpg

2235 ms

index1_01_01.jpg

index1_01_01.jpg

2747 ms

index1_01_02.jpg

index1_01_02.jpg

2754 ms

index1_01_03.jpg

index1_01_03.jpg

1685 ms

index1_01_04.jpg

index1_01_04.jpg

1139 ms

index1_01_05.jpg

index1_01_05.jpg

1144 ms

index1_01_06.jpg

index1_01_06.jpg

1688 ms

index1_01_07.jpg

index1_01_07.jpg

1698 ms

index1_01_08.jpg

index1_01_08.jpg

3280 ms

index1_01_09.jpg

index1_01_09.jpg

3284 ms

index1_01_10.jpg

index1_01_10.jpg

2245 ms

index1_01_11.jpg

index1_01_11.jpg

2744 ms

index1_01_12.jpg

index1_01_12.jpg

2772 ms

index1_01_13.jpg

index1_01_13.jpg

3271 ms

index1_01_14.jpg

index1_01_14.jpg

3271 ms

index1_07_03_01.jpg

index1_07_03_01.jpg

3279 ms

index1_07_03_02.jpg

index1_07_03_02.jpg

3305 ms

index1_07_03_03.jpg

index1_07_03_03.jpg

3802 ms

index1_07_03_04.jpg

index1_07_03_04.jpg

3802 ms

index1_07_03_05.jpg

index1_07_03_05.jpg

3814 ms

index1_07_03_06.jpg

index1_07_03_06.jpg

3816 ms

index1_07_03_07.jpg

index1_07_03_07.jpg

3817 ms

index1_07_03_08.jpg

index1_07_03_08.jpg

3845 ms

index1_07_03_09.jpg

index1_07_03_09.jpg

4358 ms

index1_07_03_10.jpg

index1_07_03_10.jpg

4359 ms

index1_07_03_11.jpg

index1_07_03_11.jpg

5722 ms

index1_07_03_12.jpg

index1_07_03_12.jpg

4360 ms

index1_07_03_13.jpg

index1_07_03_13.jpg

4383 ms

index1_07_03_14.jpg

index1_07_03_14.jpg

4394 ms

index1_07_03_15.jpg

index1_07_03_15.jpg

6017 ms

index1_07_03_16.jpg

index1_07_03_16.jpg

6138 ms

index1_07_03_17.jpg

index1_07_03_17.jpg

4906 ms

index1_07_03_18.jpg

index1_07_03_18.jpg

4934 ms

index1_07_03_19.jpg

index1_07_03_19.jpg

5902 ms

index1_07_03_20.jpg

index1_07_03_20.jpg

5458 ms

index1_07_03_21.jpg

index1_07_03_21.jpg

5489 ms

index1_07_03_22.jpg

index1_07_03_22.jpg

4854 ms

index1_07_03_23.jpg

index1_07_03_23.jpg

4878 ms

index1_07_03_24.jpg

index1_07_03_24.jpg

4573 ms

index1_07_03_25.jpg

index1_07_03_25.jpg

4762 ms

index1_07_03_26.jpg

index1_07_03_26.jpg

4826 ms

index1_07_03_27.jpg

index1_07_03_27.jpg

4339 ms

index1_07_03_28.jpg

index1_07_03_28.jpg

4312 ms

index1_07_03_29.jpg

index1_07_03_29.jpg

3942 ms

index1_07_03_30.jpg

index1_07_03_30.jpg

4055 ms

dot.jpg

dot.jpg

5341 ms

@.gif

@.gif

4291 ms

Accessibility Review

mail.tju.edu.cn accessibility score

57

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.

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

Form elements do not have associated labels

Best Practices

mail.tju.edu.cn best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

mail.tju.edu.cn SEO score

54

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

High

Page is blocked from indexing

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 Mail.tju.edu.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 Mail.tju.edu.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

mail.tju.edu.cn

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