Tools & Wizards About Us

Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 0

    Best Practices

  • 54

    SEO

    Google-friendlier than
    19% of websites

30edu.cn

网校产品中心_三通两平台核心系统_信息化教育整体解决方案_善见教育

Page Load Speed

14.8 sec in total

First Response

3.5 sec

Resources Loaded

10.8 sec

Page Rendered

398 ms

About Website

Click here to check amazing 30 Edu content. Otherwise, check out these important facts you probably never knew about 30edu.cn

随着教育部“三通两平台”的正式启动，全国中小学网校在各省区飞速普及应用，目前已和多个省区教育厅签署战略合作协议，整体进行统一化全面部署，当前已有近千个区县教育局导入网校教育体系，遍布全国各省市县

Visit 30edu.cn

Key Findings

We analyzed 30edu.cn page load time and found that the first response time was 3.5 sec and then it took 11.2 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

30edu.cn performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

72/100

25%

SI (Speed Index)

Value9.3 s

12/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.049

99/100

15%

TTI (Time to Interactive)

Value7.6 s

46/100

10%

Network Requests Diagram

30edu.cn

3529 ms

style.css

844 ms

jquery-1.4.4.min.js

1479 ms

index.js

427 ms

jquery.fancybox.css

638 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 58% of them (52 requests) were addressed to the original 30edu.cn, 16% (14 requests) were made to Cdn.30edu.com.cn and 9% (8 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (4.7 sec) belongs to the original domain 30edu.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 246.2 kB (10%)

Content Size

2.5 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 30edu.cn main page is 2.5 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. 55% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 40.3 kB

  • Original 54.6 kB
  • After minification 50.1 kB
  • After compression 14.3 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. 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 40.3 kB or 74% of the original size.

Image Optimization

-4%

Potential reduce by 103.6 kB

  • Original 2.3 MB
  • After minification 2.2 MB

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. 30 Edu images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 80.3 kB

  • Original 119.7 kB
  • After minification 111.0 kB
  • After compression 39.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 80.3 kB or 67% of the original size.

CSS Optimization

-80%

Potential reduce by 22.0 kB

  • Original 27.3 kB
  • After minification 24.0 kB
  • After compression 5.3 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. 30edu.cn needs all CSS files to be minified and compressed as it can save up to 22.0 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (13%)

Requests Now

71

After Optimization

62

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 30 Edu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

30edu.cn accessibility score

59

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

SEO Factors

30edu.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

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 30edu.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 30edu.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 30 Edu. 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: