Tools & Wizards About Us
jiayuzhou.github.io screenshot

Report Summary

  • 85

    Performance

    Renders faster than
    88% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

jiayuzhou.github.io

Jiayu Zhou | Machine Learning at University of Michigan

Page Load Speed

560 ms in total

First Response

23 ms

Resources Loaded

268 ms

Page Rendered

269 ms

jiayuzhou.github.io screenshot

About Website

Welcome to jiayuzhou.github.io homepage info - get ready to check Jiayu Zhou Github best content for China right away, or after learning these important things about jiayuzhou.github.io

Homepage of Jiayu Zhou, a professor in University of Michigan (UMich) on machine learning and AI+health. This website provides info about his biography, publications, service and software.

Visit jiayuzhou.github.io

Key Findings

We analyzed Jiayuzhou.github.io page load time and found that the first response time was 23 ms and then it took 537 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

jiayuzhou.github.io performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

79/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.241

52/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

jiayuzhou.github.io

23 ms

css

23 ms

normalize.css

27 ms

skeleton.css

17 ms

custom.css

37 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 41% of them (7 requests) were addressed to the original Jiayuzhou.github.io, 18% (3 requests) were made to Fonts.gstatic.com and 12% (2 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (74 ms) relates to the external source Cdn.rawgit.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.2 kB (17%)

Content Size

122.2 kB

After Optimization

102.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Jiayuzhou.github.io main page is 122.2 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. 25% of websites need less resources to load. Javascripts take 50.7 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 19.4 kB

  • Original 25.6 kB
  • After minification 17.7 kB
  • After compression 6.3 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. This page needs HTML code to be minified as it can gain 7.9 kB, which is 31% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 19.4 kB or 75% of the original size.

Image Optimization

-2%

Potential reduce by 760 B

  • Original 45.9 kB
  • After minification 45.1 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. Jiayu Zhou Github images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 50.7 kB
  • After minification 50.7 kB
  • After compression 50.6 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 8 (67%)

Requests Now

12

After Optimization

4

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jiayu Zhou Github. 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 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jiayuzhou.github.io

jiayuzhou.github.io

23 ms

css

css

23 ms

normalize.css

normalize.css

27 ms

skeleton.css

skeleton.css

17 ms

custom.css

custom.css

37 ms

jquery.min.js

jquery.min.js

13 ms

run_prettify.js

run_prettify.js

74 ms

github-prettify-theme.css

github-prettify-theme.css

35 ms

site.js

site.js

20 ms

run_prettify.js

run_prettify.js

31 ms

prettify.css

prettify.css

15 ms

JZhou-MSU-web2.jpg

JZhou-MSU-web2.jpg

49 ms

analytics.js

analytics.js

51 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVvaorCIPrQVIT9d4cw.ttf

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVvaorCIPrQVIT9d4cw.ttf

34 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVuEorCIPrQVIT9d4cw.ttf

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVuEorCIPrQVIT9d4cw.ttf

63 ms

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVsEpbCIPrQVIT9d4cw.ttf

1Ptxg8zYS_SKggPN4iEgvnHyvveLxVsEpbCIPrQVIT9d4cw.ttf

65 ms

collect

collect

12 ms

Accessibility Review

jiayuzhou.github.io accessibility score

73

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

jiayuzhou.github.io 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jiayuzhou.github.io SEO score

92

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jiayuzhou.github.io can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Jiayuzhou.github.io 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

jiayuzhou.github.io

Open Graph description is not detected on the main page of Jiayu Zhou Github. 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: