Tools & Wizards About Us

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

irwinkwan.com

Irwin Kwan | User Experience Researcher | Software Engineering and Human Factors of Computing

Page Load Speed

515 ms in total

First Response

10 ms

Resources Loaded

313 ms

Page Rendered

192 ms

About Website

Visit irwinkwan.com now to see the best up-to-date Irwin Kwan content for India and also check out these interesting facts you probably never knew about irwinkwan.com

I am a User Experience Specialist at The MathWorks, makers of the engineering and scientific computing software MATLAB and Simulink. Previously, I was a researcher in the areas of software engineering...

Visit irwinkwan.com

Key Findings

We analyzed Irwinkwan.com page load time and found that the first response time was 10 ms and then it took 505 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

irwinkwan.com performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value2,890 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.208

60/100

15%

TTI (Time to Interactive)

Value32.8 s

0/100

10%

Network Requests Diagram

irwinkwan.com

10 ms

irwinkwan.com

20 ms

76 ms

73 ms

68 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 11% of them (4 requests) were addressed to the original Irwinkwan.com, 27% (10 requests) were made to S2.wp.com and 11% (4 requests) were made to S1.wp.com. The less responsive or slowest element that took the longest time to load (181 ms) relates to the external source S.pubmine.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 74.5 kB (26%)

Content Size

285.0 kB

After Optimization

210.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Irwinkwan.com main page is 285.0 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. 40% of websites need less resources to load. Javascripts take 111.2 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 73.3 kB

  • Original 102.5 kB
  • After minification 100.8 kB
  • After compression 29.1 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 73.3 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 32.7 kB
  • After minification 32.7 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. Irwin Kwan images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 998 B

  • Original 111.2 kB
  • After minification 111.2 kB
  • After compression 110.2 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.

CSS Optimization

-0%

Potential reduce by 165 B

  • Original 38.5 kB
  • After minification 38.5 kB
  • After compression 38.3 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. Irwinkwan.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (64%)

Requests Now

33

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Irwin Kwan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

irwinkwan.com accessibility score

94

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

Links do not have a discernible name

Best Practices

irwinkwan.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

irwinkwan.com SEO score

88

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

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Irwinkwan.com 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 Irwinkwan.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

Open Graph data is detected on the main page of Irwin Kwan. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: