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teacherplus.cn screenshot

Report Summary

  • 91

    Performance

    Renders faster than
    91% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

teacherplus.cn

师加网

Page Load Speed

2.8 sec in total

First Response

723 ms

Resources Loaded

2 sec

Page Rendered

75 ms

teacherplus.cn screenshot

About Website

Click here to check amazing Teacherplus content for China. Otherwise, check out these important facts you probably never knew about teacherplus.cn

师加网是由杭州师范大学运营的，专门为中小学教师远程培训、提升工程、混合式培训提供服务。

Visit teacherplus.cn

Key Findings

We analyzed Teacherplus.cn page load time and found that the first response time was 723 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

teacherplus.cn performance score

91

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

93/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

72/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.2 s

99/100

10%

Network Requests Diagram

teacherplus.cn

723 ms

bootstrap.min.css

1103 ms

site1.css

442 ms

jquery.slim.min.js

893 ms

bootstrap.bundle.min.js

924 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that all of those requests were addressed to Teacherplus.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Teacherplus.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 266.8 kB (62%)

Content Size

427.7 kB

After Optimization

161.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Teacherplus.cn main page is 427.7 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. CSS take 162.7 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 2.3 kB

  • Original 3.5 kB
  • After minification 2.7 kB
  • After compression 1.3 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 808 B, which is 23% 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 2.3 kB or 64% of the original size.

Image Optimization

-17%

Potential reduce by 18.2 kB

  • Original 107.6 kB
  • After minification 89.4 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, Teacherplus needs image optimization as it can save up to 18.2 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 108.1 kB

  • Original 154.0 kB
  • After minification 154.0 kB
  • After compression 45.9 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 108.1 kB or 70% of the original size.

CSS Optimization

-85%

Potential reduce by 138.2 kB

  • Original 162.7 kB
  • After minification 162.3 kB
  • After compression 24.5 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. Teacherplus.cn needs all CSS files to be minified and compressed as it can save up to 138.2 kB or 85% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Teacherplus. According to our analytics all requests are already optimized.

Network Requests Diagram

teacherplus.cn

teacherplus.cn

723 ms

bootstrap.min.css

bootstrap.min.css

1103 ms

site1.css

site1.css

442 ms

jquery.slim.min.js

jquery.slim.min.js

893 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

924 ms

tplogo.png

tplogo.png

1243 ms

Accessibility Review

teacherplus.cn accessibility score

96

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.

Best Practices

teacherplus.cn 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

teacherplus.cn SEO score

100

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Teacherplus.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Teacherplus.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

teacherplus.cn

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