Tools & Wizards About Us
yu-sen.com screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

yu-sen.com

珠海天然药物研究所

Page Load Speed

23.8 sec in total

First Response

1.5 sec

Resources Loaded

22 sec

Page Rendered

281 ms

yu-sen.com screenshot

About Website

Welcome to yu-sen.com homepage info - get ready to check Yu Sen best content for China right away, or after learning these important things about yu-sen.com

珠海经济特区天然药物研究所有限公司（玉森,玉森牌）:珠孕天然，海泽药物；我所是在珠海市人民政府直接关怀下于1993年创建的科研机构，是一家集药物、保健食品、营养食品研究、开发、生产、销售于一身具有独立知识产权的实体。2000年成为珠海市科委首批认定的“生产科技型民营企业”；2002年被广东省科技厅认定为“生产型科技企业”；2006年产、学、研综合楼通过广东省食品药品监督管理局 GMP认证，国家海关...

Visit yu-sen.com

Key Findings

We analyzed Yu-sen.com page load time and found that the first response time was 1.5 sec and then it took 22.3 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.

Performance Metrics

yu-sen.com performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value240 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.195

63/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

Network Requests Diagram

yu-sen.com

1474 ms

index.html

585 ms

master.css

426 ms

content.css

2481 ms

wKiAiVMecdPhS17ZAAAeuYy0AGA228.png

6757 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 95% of them (40 requests) were addressed to the original Yu-sen.com, 5% (2 requests) were made to Images02.cdn86.net. The less responsive or slowest element that took the longest time to load (17.4 sec) belongs to the original domain Yu-sen.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 62.0 kB (8%)

Content Size

759.8 kB

After Optimization

697.8 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Yu-sen.com main page is 759.8 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. 15% of websites need less resources to load. Images take 719.2 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 24.4 kB

  • Original 34.1 kB
  • After minification 33.1 kB
  • After compression 9.8 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 24.4 kB or 71% of the original size.

Image Optimization

-5%

Potential reduce by 32.7 kB

  • Original 719.2 kB
  • After minification 686.4 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. Yu Sen images are well optimized though.

CSS Optimization

-75%

Potential reduce by 4.9 kB

  • Original 6.5 kB
  • After minification 5.5 kB
  • After compression 1.6 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. Yu-sen.com needs all CSS files to be minified and compressed as it can save up to 4.9 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (24%)

Requests Now

37

After Optimization

28

  • Images
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yu Sen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

yu-sen.com

yu-sen.com

1474 ms

index.html

index.html

585 ms

master.css

master.css

426 ms

content.css

content.css

2481 ms

wKiAiVMecdPhS17ZAAAeuYy0AGA228.png

wKiAiVMecdPhS17ZAAAeuYy0AGA228.png

6757 ms

wKiAiVMZadHJoKKVAAASkbM9CfU346.png

wKiAiVMZadHJoKKVAAASkbM9CfU346.png

6899 ms

cn.jpg

cn.jpg

382 ms

en.jpg

en.jpg

726 ms

z.jpg

z.jpg

1817 ms

1397545222788553.jpg

1397545222788553.jpg

5272 ms

t_icon.gif

t_icon.gif

794 ms

1340588559426578.jpg

1340588559426578.jpg

3292 ms

more.jpg

more.jpg

794 ms

icon.jpg

icon.jpg

2136 ms

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1314586520612065.jpg

2870 ms

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1314586534769739.jpg

1878 ms

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1314586549543131.jpg

3182 ms

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1314586564233935.jpg

2578 ms

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1302595450728734.jpg

2822 ms

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1302766780726973.jpg

3329 ms

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1302766670534986.jpg

3170 ms

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1302595744538063.jpg

3908 ms

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1302766551543435.jpg

3519 ms

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1303287473639045.jpg

3875 ms

email.jpg

email.jpg

3647 ms

guo.jpg

guo.jpg

4286 ms

tS.jpg

tS.jpg

5230 ms

top.jpg

top.jpg

6333 ms

go1.jpg

go1.jpg

4219 ms

input1.jpg

input1.jpg

4245 ms

nav_bg.jpg

nav_bg.jpg

7014 ms

nav_li.jpg

nav_li.jpg

4592 ms

1342161864553920.jpg

1342161864553920.jpg

7032 ms

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1373268492279256.jpg

8288 ms

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1373268403030643.jpg

13079 ms

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1340594387675211.jpg

10354 ms

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1373268226575465.jpg

17421 ms

1-1.jpg

1-1.jpg

7700 ms

line.jpg

line.jpg

7392 ms

1-2.jpg

1-2.jpg

8095 ms

1-3.jpg

1-3.jpg

9320 ms

footer.jpg

footer.jpg

8439 ms

Accessibility Review

yu-sen.com accessibility score

65

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.

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

yu-sen.com best practices score

67

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

Missing source maps for large first-party JavaScript

SEO Factors

yu-sen.com SEO score

77

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

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

High

Tap targets are not sized appropriately

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 Yu-sen.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 Yu-sen.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

yu-sen.com

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