Report Summary

  • 47

    Performance

    Renders faster than
    65% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    46% of websites

  • 54

    SEO

    Google-friendlier than
    29% of websites

elseviermed.cn

爱唯医学网—全方位了解世界医学最新进展

Page Load Speed

58.6 sec in total

First Response

5.5 sec

Resources Loaded

52.6 sec

Page Rendered

446 ms

elseviermed.cn screenshot

About Website

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

爱唯医学网是针对中国医疗工作者对最新权威可靠的国际医学资讯需求、提供在线临床和教育解决方案,爱思唯尔 (Elsevier) 是一个有400多年历史的全球最大的科技和医学信息出版商,拥有全球最大的医学资源,绝大多数的诺贝尔奖获得者曾在爱思唯尔旗下的专业资源发表他们的成果。

Visit elseviermed.cn

Key Findings

We analyzed Elseviermed.cn page load time and found that the first response time was 5.5 sec and then it took 53 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 25 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

elseviermed.cn performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

64/100

25%

SI (Speed Index)

Value9.1 s

14/100

10%

TBT (Total Blocking Time)

Value950 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value11.5 s

19/100

10%

Network Requests Diagram

elseviermed.cn

5536 ms

base.css

874 ms

top.css

3686 ms

layout.css

2447 ms

jquery-1.4.1.min.js

7584 ms

Our browser made a total of 147 requests to load all elements on the main page. We found that 34% of them (50 requests) were addressed to the original Elseviermed.cn, 36% (53 requests) were made to Images.elseviermed.cn and 7% (10 requests) were made to V3.jiathis.com. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Images.elseviermed.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 650.7 kB (34%)

Content Size

1.9 MB

After Optimization

1.3 MB

In fact, the total size of Elseviermed.cn main page is 1.9 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. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 85.5 kB

  • Original 108.1 kB
  • After minification 101.5 kB
  • After compression 22.6 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 85.5 kB or 79% of the original size.

Image Optimization

-7%

Potential reduce by 79.3 kB

  • Original 1.1 MB
  • After minification 1.0 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. Elseviermed images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 423.1 kB

  • Original 627.1 kB
  • After minification 618.5 kB
  • After compression 204.0 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 423.1 kB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 62.8 kB

  • Original 74.7 kB
  • After minification 69.6 kB
  • After compression 11.9 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. Elseviermed.cn needs all CSS files to be minified and compressed as it can save up to 62.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (38%)

Requests Now

115

After Optimization

71

The browser has sent 115 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Elseviermed. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

elseviermed.cn accessibility score

79

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

Best Practices

elseviermed.cn best practices score

69

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

High

Browser errors were logged to the console

SEO Factors

elseviermed.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 Elseviermed.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 Elseviermed.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 Elseviermed. 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: