Access cdeledu.com. 正保远程教育-专注职业教育和服务

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value200 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.7 s

29/100

10%

cdeledu.com

1179 ms

global.css

711 ms

common.css

736 ms

index.css

810 ms

index.html

3622 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 98% of them (49 requests) were addressed to the original Cdeledu.com, 2% (1 request) were made to Class.chinaacc.com. The less responsive or slowest element that took the longest time to load (4.3 sec) belongs to the original domain Cdeledu.com.

Content Size

497.3 kB

After Optimization

132.1 kB

In fact, the total size of Cdeledu.com main page is 497.3 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. Only 10% of websites need less resources to load. CSS take 369.6 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 6.4 kB

Original 9.5 kB
After minification 8.9 kB
After compression 3.1 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 6.4 kB or 67% of the original size.

Image Optimization

-7%

Potential reduce by 6.2 kB

Original 90.1 kB
After minification 83.9 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. Cdeledu images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 18.5 kB

Original 28.1 kB
After minification 26.8 kB
After compression 9.6 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 18.5 kB or 66% of the original size.

CSS Optimization

-90%

Potential reduce by 334.2 kB

Original 369.6 kB
After minification 328.2 kB
After compression 35.4 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. Cdeledu.com needs all CSS files to be minified and compressed as it can save up to 334.2 kB or 90% of the original size.

Requests Now

After Optimization

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cdeledu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cdeledu.com 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 Cdeledu.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

cdeledu.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

正保远程教育-专注职业教育和服务

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

cdeledu.com

global.css

common.css

index.css

index.html

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

cdeledu.com

global.css

common.css

index.css

index.html

en.gif

zp.jpg

lianxi.jpg

zjzb.gif

zbxw.gif

zbpp.gif

tz.gif

csjj.gif

hz.gif

gzzbt.jpg

rwfct.jpg

duansh9872011122716572144770.jpg

weixin_cdeledu.js

zbppt.jpg

acc.jpg

med.jpg

jianshe.jpg

law.jpg

chinese.jpg

chinatat.jpg

zikao.jpg

kaoyan.jpg

g12e.jpg

for68.jpg

ck.jpg

chinapen.jpg

bg.gif

cdellogo.jpg

navbj.gif

navl.gif

navr.gif

titlebg.jpg

titlexb.jpg

dian.jpg

ppbj.jpg

wx_top.gif

cdeledu.jpg

cdeledu.gif