Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

crup.com.cn

首页-中国人民大学出版社

Page Load Speed

7.8 sec in total

First Response

1.4 sec

Resources Loaded

6.1 sec

Page Rendered

188 ms

crup.com.cn screenshot

About Website

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

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Key Findings

We analyzed Crup.com.cn page load time and found that the first response time was 1.4 sec and then it took 6.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

crup.com.cn performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value11.9 s

0/100

25%

SI (Speed Index)

Value14.5 s

1/100

10%

TBT (Total Blocking Time)

Value1,140 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.587

11/100

15%

TTI (Time to Interactive)

Value9.8 s

28/100

10%

Network Requests Diagram

crup.com.cn

1430 ms

url_control.js

663 ms

load_cache.js

370 ms

login.js

683 ms

crup.com.cn

998 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that all of those requests were addressed to Crup.com.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Crup.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 843.9 kB (74%)

Content Size

1.1 MB

After Optimization

298.3 kB

In fact, the total size of Crup.com.cn main page is 1.1 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. 35% of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 17.2 kB

  • Original 23.5 kB
  • After minification 21.8 kB
  • After compression 6.4 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 17.2 kB or 73% of the original size.

Image Optimization

-31%

Potential reduce by 6.3 kB

  • Original 20.7 kB
  • After minification 14.4 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, Crup needs image optimization as it can save up to 6.3 kB or 31% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 780.4 kB

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 267.8 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 780.4 kB or 74% of the original size.

CSS Optimization

-80%

Potential reduce by 40.0 kB

  • Original 49.8 kB
  • After minification 49.8 kB
  • After compression 9.8 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. Crup.com.cn needs all CSS files to be minified and compressed as it can save up to 40.0 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (67%)

Requests Now

43

After Optimization

14

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Crup. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

crup.com.cn accessibility score

56

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.

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

crup.com.cn best practices score

75

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

crup.com.cn SEO score

83

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

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

    N/A

  • Encoding

    UTF-8

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