Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

chkd.cnki.net

Loading

Page Load Speed

69.4 sec in total

First Response

14.6 sec

Resources Loaded

54.5 sec

Page Rendered

403 ms

chkd.cnki.net screenshot

About Website

Welcome to chkd.cnki.net homepage info - get ready to check Chkd Cnki best content for China right away, or after learning these important things about chkd.cnki.net

中国医院数字图书馆(CHKD)是专门针对生物医学领域量身定制、开发的专业医学信息数据库。收录了中华预防医学会、中国药学会、中国实用医学杂志社等医学期刊,提供博硕士学位论文、会议论文、报纸、年鉴、工具书、人民军医、外文文献等各类资源统一检索、在线阅读和下载服务。旨在帮助医务工作者解决临床疑难病诊断治疗、医学科研选题、撰写论文、成果鉴定、医院管理决策经营、医学继续教育等多方面的医学知识信息需要。

Visit chkd.cnki.net

Key Findings

We analyzed Chkd.cnki.net page load time and found that the first response time was 14.6 sec and then it took 54.9 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 were 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

chkd.cnki.net performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

84/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.073

96/100

15%

TTI (Time to Interactive)

Value2.4 s

98/100

10%

Network Requests Diagram

chkd.cnki.net

14562 ms

medicine.css

7245 ms

w_jiaodiantu.css

3798 ms

jquery.min.js

17907 ms

w_jiaodiantu_02.js

770 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 90% of them (83 requests) were addressed to the original Chkd.cnki.net, 3% (3 requests) were made to Piccache.cnki.net and 1% (1 request) were made to S21.cnzz.com. The less responsive or slowest element that took the longest time to load (20.1 sec) belongs to the original domain Chkd.cnki.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 162.9 kB (55%)

Content Size

298.3 kB

After Optimization

135.4 kB

In fact, the total size of Chkd.cnki.net main page is 298.3 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. 20% of websites need less resources to load. Javascripts take 133.0 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 62.0 kB

  • Original 78.5 kB
  • After minification 70.7 kB
  • After compression 16.5 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 62.0 kB or 79% of the original size.

Image Optimization

-9%

Potential reduce by 7.3 kB

  • Original 85.8 kB
  • After minification 78.5 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. Chkd Cnki images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 93.0 kB

  • Original 133.0 kB
  • After minification 133.0 kB
  • After compression 40.0 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 93.0 kB or 70% of the original size.

CSS Optimization

-59%

Potential reduce by 562 B

  • Original 957 B
  • After minification 825 B
  • After compression 395 B

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. Chkd.cnki.net needs all CSS files to be minified and compressed as it can save up to 562 B or 59% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (11%)

Requests Now

85

After Optimization

76

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chkd Cnki. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

chkd.cnki.net accessibility score

51

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

chkd.cnki.net best practices score

50

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

chkd.cnki.net SEO score

58

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chkd.cnki.net can be misinterpreted by Google and other search engines. Our service has detected that English 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 Chkd.cnki.net 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 Chkd Cnki. 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: