Access cmpedu.com. 机工教育服务网--机械工业出版社

cmpedu.com screenshot

42

Performance

Renders faster than
61% of other websites
73

Accessibility

Visual factors better than
that of 38% of websites
58

Best Practices

More advanced features
available than in
20% of websites
83

SEO

Google-friendlier than
46% of websites

First Response

1.1 sec

Resources Loaded

28.6 sec

Page Rendered

527 ms

cmpedu.com screenshot

About Website

Click here to check amazing Cmpedu content for China. Otherwise, check out these important facts you probably never knew about cmpedu.com

机械工业出版社官方教育服务网站，为用户提供教材查询、课件下载、样书申请、教师培训、选题出版等服务。客服微信：1156857683，客服电话：010-88379833 。

Visit cmpedu.com

Key Findings

We analyzed Cmpedu.com page load time and found that the first response time was 1.1 sec and then it took 29.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

name

value

score

weighting

FCP (First Contentful Paint)

Value12.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.6 s

0/100

25%

SI (Speed Index)

Value25.4 s

0/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.139

79/100

15%

TTI (Time to Interactive)

Value17.5 s

4/100

10%

cmpedu.com

1129 ms

index.htm

1544 ms

bootstrap.min.css

1293 ms

beyond.min.css

1816 ms

swiper.min.css

520 ms

Our browser made a total of 194 requests to load all elements on the main page. We found that 64% of them (125 requests) were addressed to the original Cmpedu.com, 29% (57 requests) were made to S.cmpedu.com and 3% (5 requests) were made to Yingxiao2.s3.cn-north-1.amazonaws.com.cn. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source S.cmpedu.com.

Content Size

3.7 MB

After Optimization

1.3 MB

In fact, the total size of Cmpedu.com main page is 3.7 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. 60% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 157.7 kB

Original 180.9 kB
After minification 145.7 kB
After compression 23.1 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. This page needs HTML code to be minified as it can gain 35.2 kB, which is 19% 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 157.7 kB or 87% of the original size.

Image Optimization

-58%

Potential reduce by 1.6 MB

Original 2.7 MB
After minification 1.1 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. Obviously, Cmpedu needs image optimization as it can save up to 1.6 MB or 58% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-85%

Potential reduce by 700.1 kB

Original 819.8 kB
After minification 783.0 kB
After compression 119.7 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. Cmpedu.com needs all CSS files to be minified and compressed as it can save up to 700.1 kB or 85% of the original size.

Requests Now

133

After Optimization

84

The browser has sent 133 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cmpedu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 12 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 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 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

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

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

ZH
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cmpedu.com 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 Cmpedu.com 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

cmpedu.com

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