Report Summary

  • 64

    Performance

    Renders faster than
    77% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

netban.cn

网班,netban, 网班教育,智慧课堂, 智慧教室, 移动学习

Page Load Speed

8.3 sec in total

First Response

758 ms

Resources Loaded

7.4 sec

Page Rendered

114 ms

About Website

Visit netban.cn now to see the best up-to-date Netban content for China and also check out these interesting facts you probably never knew about netban.cn

netban,智慧教室, 智慧课堂, 移动学习, 云教育, 募课

Visit netban.cn

Key Findings

We analyzed Netban.cn page load time and found that the first response time was 758 ms and then it took 7.5 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

netban.cn performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value8.3 s

20/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.043

99/100

15%

TTI (Time to Interactive)

Value4.6 s

81/100

10%

Network Requests Diagram

netban.cn

758 ms

www.netban.cn

1585 ms

login

746 ms

custom.css

762 ms

custom_mowei.css

510 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 71% of them (20 requests) were addressed to the original Netban.cn, 11% (3 requests) were made to Custom.netban.cn and 11% (3 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (2.9 sec) relates to the external source Custom.netban.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 493.9 kB (59%)

Content Size

830.6 kB

After Optimization

336.7 kB

In fact, the total size of Netban.cn main page is 830.6 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. Images take 419.0 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 12.3 kB

  • Original 15.9 kB
  • After minification 12.0 kB
  • After compression 3.6 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 3.9 kB, which is 25% 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 12.3 kB or 77% of the original size.

Image Optimization

-38%

Potential reduce by 158.8 kB

  • Original 419.0 kB
  • After minification 260.2 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, Netban needs image optimization as it can save up to 158.8 kB or 38% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-81%

Potential reduce by 284.3 kB

  • Original 349.9 kB
  • After minification 232.3 kB
  • After compression 65.6 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 284.3 kB or 81% of the original size.

CSS Optimization

-84%

Potential reduce by 38.5 kB

  • Original 45.8 kB
  • After minification 39.4 kB
  • After compression 7.3 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. Netban.cn needs all CSS files to be minified and compressed as it can save up to 38.5 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (42%)

Requests Now

24

After Optimization

14

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Netban. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

netban.cn accessibility score

75

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

netban.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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

netban.cn SEO score

67

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

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 Netban.cn 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 Netban.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

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