Tools & Wizards About Us

Report Summary

  • 81

    Performance

    Renders faster than
    86% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

stemcell8.cn

干细胞之家 - 中国干细胞行业门户第一站

Page Load Speed

12.3 sec in total

First Response

2.2 sec

Resources Loaded

10 sec

Page Rendered

184 ms

About Website

Welcome to stemcell8.cn homepage info - get ready to check Stemcell 8 best content for China right away, or after learning these important things about stemcell8.cn

干细胞之家 ——中国干细胞行业资源共享、交流探讨、互相学习、共同进步的网站.网站汇集干细胞、免疫细胞治疗和基础研究的全部内容.包括神经干细胞,胚胎干细胞,间充质干细胞,dc,cik,car-T,ips,造血干细胞，生殖干细胞等多方面内容 ,干细胞之家 - 中国干细胞行业门户第一站

Visit stemcell8.cn

Key Findings

We analyzed Stemcell8.cn page load time and found that the first response time was 2.2 sec and then it took 10.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

stemcell8.cn performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

66/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value4.1 s

87/100

10%

Network Requests Diagram

stemcell8.cn

2158 ms

www.stemcell8.cn

1921 ms

style_1_common.css

1094 ms

style_1_forum_index.css

764 ms

style.css

753 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 93% of them (39 requests) were addressed to the original Stemcell8.cn, 2% (1 request) were made to Exmail.qq.com and 2% (1 request) were made to Js.users.51.la. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Stemcell8.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 224.7 kB (45%)

Content Size

494.0 kB

After Optimization

269.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Stemcell8.cn main page is 494.0 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 265.3 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 43.5 kB

  • Original 55.0 kB
  • After minification 54.9 kB
  • After compression 11.5 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 43.5 kB or 79% of the original size.

Image Optimization

-19%

Potential reduce by 49.3 kB

  • Original 265.3 kB
  • After minification 216.0 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, Stemcell 8 needs image optimization as it can save up to 49.3 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 89.4 kB

  • Original 118.4 kB
  • After minification 98.8 kB
  • After compression 29.0 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 89.4 kB or 76% of the original size.

CSS Optimization

-77%

Potential reduce by 42.6 kB

  • Original 55.3 kB
  • After minification 54.0 kB
  • After compression 12.8 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. Stemcell8.cn needs all CSS files to be minified and compressed as it can save up to 42.6 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (28%)

Requests Now

40

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stemcell 8. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

stemcell8.cn 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.

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

stemcell8.cn best practices score

75

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

Serves images with low resolution

SEO Factors

stemcell8.cn SEO score

69

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stemcell8.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 Stemcell8.cn main page’s claimed encoding is gbk. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Stemcell 8. 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: