Tools & Wizards About Us
leeboonstra.dev screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

leeboonstra.dev

Generative AI & Conversational AI blog by Google Software Engineer Lee Boonstra

Page Load Speed

996 ms in total

First Response

40 ms

Resources Loaded

792 ms

Page Rendered

164 ms

leeboonstra.dev screenshot

About Website

Welcome to leeboonstra.dev homepage info - get ready to check Lee Boonstra best content right away, or after learning these important things about leeboonstra.dev

Conversational AI Blog of SWE Tech Lead Lee Boonstra. Writes about Generative AI, Prompt Engineering, Dialogflow, Chatbots, NLP and AI in Contact Centers.

Visit leeboonstra.dev

Key Findings

We analyzed Leeboonstra.dev page load time and found that the first response time was 40 ms and then it took 956 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

leeboonstra.dev performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

76/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value1,250 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

leeboonstra.dev

40 ms

www.leeboonstra.dev

95 ms

main.css

4 ms

prism-atom-dark.css

18 ms

prism.js

22 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 27% of them (16 requests) were addressed to the original Leeboonstra.dev, 35% (21 requests) were made to Encore.scdn.co and 28% (17 requests) were made to Embed-cdn.spotifycdn.com. The less responsive or slowest element that took the longest time to load (296 ms) relates to the external source Open.spotify.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 42.2 kB (6%)

Content Size

701.3 kB

After Optimization

659.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Leeboonstra.dev main page is 701.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 529.4 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 24.4 kB

  • Original 33.3 kB
  • After minification 31.0 kB
  • After compression 8.9 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 73% of the original size.

Image Optimization

-14%

Potential reduce by 17.4 kB

  • Original 126.5 kB
  • After minification 109.0 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, Lee Boonstra needs image optimization as it can save up to 17.4 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 333 B

  • Original 529.4 kB
  • After minification 529.4 kB
  • After compression 529.1 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 38 B

  • Original 12.1 kB
  • After minification 12.1 kB
  • After compression 12.1 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. Leeboonstra.dev has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (62%)

Requests Now

34

After Optimization

13

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lee Boonstra. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

leeboonstra.dev

leeboonstra.dev

40 ms

www.leeboonstra.dev

www.leeboonstra.dev

95 ms

main.css

main.css

4 ms

prism-atom-dark.css

prism-atom-dark.css

18 ms

prism.js

prism.js

22 ms

bundle.js

bundle.js

45 ms

js

js

87 ms

4uwFcwDRchAGSun4xLqxDB

4uwFcwDRchAGSun4xLqxDB

296 ms

thumb_podcast4.png

thumb_podcast4.png

162 ms

small_profile.jpg

small_profile.jpg

6 ms

small_googlelogo.jpg

small_googlelogo.jpg

6 ms

small_apress-book.jpg

small_apress-book.jpg

4 ms

thumb_prizes1.png

thumb_prizes1.png

7 ms

thumb_0_dialogflow-book.png

thumb_0_dialogflow-book.png

12 ms

thumb_dialogflow_flutter.png

thumb_dialogflow_flutter.png

11 ms

thumb_dialogflow-cx-flows.png

thumb_dialogflow-cx-flows.png

12 ms

analytics.js

analytics.js

17 ms

collect

collect

15 ms

bebasneue-webfont.woff

bebasneue-webfont.woff

4 ms

AbhayaLibre-Regular-webfont.woff

AbhayaLibre-Regular-webfont.woff

7 ms

collect

collect

22 ms

ga-audiences

ga-audiences

27 ms

461cd0504da4fff1.css

461cd0504da4fff1.css

17 ms

192261c9a6efeac6.css

192261c9a6efeac6.css

19 ms

364d0cc114e2dc9d.css

364d0cc114e2dc9d.css

22 ms

polyfills-c67a75d1b6f99dc8.js

polyfills-c67a75d1b6f99dc8.js

32 ms

webpack-ea34bc3366caf997.js

webpack-ea34bc3366caf997.js

31 ms

framework-9061fa2704610d1a.js

framework-9061fa2704610d1a.js

49 ms

main-45d0e026ad3339d5.js

main-45d0e026ad3339d5.js

48 ms

_app-410ecf0558dd409e.js

_app-410ecf0558dd409e.js

90 ms

fec483df-e793d3f4aac0c1fc.js

fec483df-e793d3f4aac0c1fc.js

88 ms

594-284e2b73b8c68654.js

594-284e2b73b8c68654.js

83 ms

396-5ce3af1ccb0ab43d.js

396-5ce3af1ccb0ab43d.js

87 ms

745-def44b4adc358a13.js

745-def44b4adc358a13.js

89 ms

463-cd3bdc4b44e07b72.js

463-cd3bdc4b44e07b72.js

171 ms

%5Bid%5D-7ae0b1245e900524.js

%5Bid%5D-7ae0b1245e900524.js

172 ms

_buildManifest.js

_buildManifest.js

180 ms

_ssgManifest.js

_ssgManifest.js

181 ms

CircularSpTitle-Bold-7cd3208b73fd0850bca5d8f7821439cd.woff

CircularSpTitle-Bold-7cd3208b73fd0850bca5d8f7821439cd.woff

131 ms

CircularSpTitle-Black-b063ad0a42cbaf519c7ccba8b3e1caeb.woff

CircularSpTitle-Black-b063ad0a42cbaf519c7ccba8b3e1caeb.woff

138 ms

CircularSpTitle-Tall-Bold-24c7e518b6e633e498760fab4aa88218.woff

CircularSpTitle-Tall-Bold-24c7e518b6e633e498760fab4aa88218.woff

143 ms

CircularSpTitle-Tall-Black-35a438fa59bc07bdf08133e438d72409.woff

CircularSpTitle-Tall-Black-35a438fa59bc07bdf08133e438d72409.woff

157 ms

CircularSp-Arab-Book-15ab1b42ca6ef5894519756031ee3ed5.woff

CircularSp-Arab-Book-15ab1b42ca6ef5894519756031ee3ed5.woff

143 ms

CircularSp-Arab-Bold-f6f9a0b56c26078440d40b145f48ab5a.woff

CircularSp-Arab-Bold-f6f9a0b56c26078440d40b145f48ab5a.woff

145 ms

CircularSp-Arab-Black-85253c80e7df46d62c4d5420e1cc5f4c.woff

CircularSp-Arab-Black-85253c80e7df46d62c4d5420e1cc5f4c.woff

142 ms

CircularSp-Hebr-Book-d8209975eafc81a9499df8401a339ddd.woff

CircularSp-Hebr-Book-d8209975eafc81a9499df8401a339ddd.woff

144 ms

CircularSp-Hebr-Bold-caa03e4cb8690e726ef1625c7d91a7a5.woff

CircularSp-Hebr-Bold-caa03e4cb8690e726ef1625c7d91a7a5.woff

144 ms

CircularSp-Hebr-Black-f52613a9d541248805af1d0bb33102f8.woff

CircularSp-Hebr-Black-f52613a9d541248805af1d0bb33102f8.woff

145 ms

CircularSp-Cyrl-Book-6f078f781ee313e298ad8997fd1ffe3d.woff

CircularSp-Cyrl-Book-6f078f781ee313e298ad8997fd1ffe3d.woff

154 ms

CircularSp-Cyrl-Bold-7e54bccaf45728c472079785d5cd4519.woff

CircularSp-Cyrl-Bold-7e54bccaf45728c472079785d5cd4519.woff

155 ms

CircularSp-Cyrl-Black-b4305d9bf82554f631d2636c3ef90c54.woff

CircularSp-Cyrl-Black-b4305d9bf82554f631d2636c3ef90c54.woff

155 ms

CircularSp-Grek-Book-c9de2c0741586c1ab7b6e95541fc7807.woff

CircularSp-Grek-Book-c9de2c0741586c1ab7b6e95541fc7807.woff

155 ms

CircularSp-Grek-Bold-53bb923248ba22cf5554bbe5f434c5c8.woff

CircularSp-Grek-Bold-53bb923248ba22cf5554bbe5f434c5c8.woff

155 ms

CircularSp-Grek-Black-49883536c1a3bfc688235ce40572731d.woff

CircularSp-Grek-Black-49883536c1a3bfc688235ce40572731d.woff

164 ms

CircularSp-Deva-Book-159c0e02bc9dc7dd0830fb569faf1069.woff

CircularSp-Deva-Book-159c0e02bc9dc7dd0830fb569faf1069.woff

163 ms

CircularSp-Deva-Bold-a212adfa8f476d3544664463d5759178.woff

CircularSp-Deva-Bold-a212adfa8f476d3544664463d5759178.woff

164 ms

CircularSp-Deva-Black-bbe191a7814d06a3eecc724265dae2d0.woff

CircularSp-Deva-Black-bbe191a7814d06a3eecc724265dae2d0.woff

164 ms

CircularSp-Book-4f217aebee53ffc72f4444f79041ffa5.woff

CircularSp-Book-4f217aebee53ffc72f4444f79041ffa5.woff

163 ms

CircularSp-Bold-79ebb2bdea919cebedea4884d08c499e.woff

CircularSp-Bold-79ebb2bdea919cebedea4884d08c499e.woff

164 ms

_error-2d285668fa3a339d.js

_error-2d285668fa3a339d.js

21 ms

Accessibility Review

leeboonstra.dev accessibility score

90

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

leeboonstra.dev best practices score

83

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

General

Impact

Issue

High

Missing source maps for large first-party JavaScript

SEO Factors

leeboonstra.dev SEO score

100

Search Engine Optimization Advices

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 Leeboonstra.dev 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 Leeboonstra.dev 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

leeboonstra.dev

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