Andrew Galloni retweeted
The @RealWebPageTest has been _cranking_ on this for awhile and it's finally time to share! I could not be more excited to unveil our new Opportunities & Experiments—a way to let you test performance optimizations without touching a single line of code.
blog.webpagetest.org/posts/i…
Andrew Galloni retweeted
103 Early Hint responses are now in the HTML standard!
... lets you to start loading subresources before the main HTML response is complete
html.spec.whatwg.org/multipa…
Process early hints (103 responses) (thanks noamr!)
github.com/whatwg/html/commi…
Andrew Galloni retweeted
I love using @CloudflareDev Workers with @RealWebPageTest to experiment with #WebPerf optimisations.
This page's LCP could be 10s faster and FCP 3s faster at 3G with some simple tweaks 😱
@TheRealNooshu has a getting-started guide here: nooshu.com/blog/2021/03/14/s…
Andrew Galloni retweeted
The IESG has approved Extensible Prioritization Scheme for HTTP for publication as an RFC. datatracker.ietf.org/doc/dra…
Andrew Galloni retweeted
I'm so excited to welcome @nokusu as a maintainer on @hyperium_rs! hyper.rs/blog/2021/05/06/wel…
🥳#rustlang
Andrew Galloni retweeted
Excited to be partnering with Wordpress.com to bring @Cloudflare’s Automatic Platform Optimization (APO) to more of the web! blog.cloudflare.com/cloudfla…
Andrew Galloni retweeted
New blog post: 'Setting up Cloudflare Workers for web performance optimisation and testing': nooshu.github.io/blog/2021/0…
A step by step guide on how to get started using @Cloudflare Workers and WebPageTest for web performance optimisation.
#webperf #perfmatters
ALT Annotated browser UI for worker programming.
ALT Image of how to route the WebPageTest browser through the Worker.
ALT Waterfall from WebPageTest showing the two important request / responses being routed through the Worker.
ALT Testing our Worker in the UI and verifying that we have changed the CSS body `font-family` in the response.
Andrew Galloni retweeted
Planning on fixing your CLS before it hits the Google search algorithm in May?
Do yourself a favor and grab a Cloudflare Worker for rapid prototyping against your live site. Add WebPageTest and you've got a fast way to experiment with fixes before touching prod.
#webperf #seo
ALT WebPageTest results comparing 4 different experiments: - Baseline - Selected scripts placed in the head, no global banner - Selected scripts placed in the head, with global banner - Selected scripts placed in the head, with global banner, plus targeted use of async
ALT Layout shift results for the 4 tests, showing the baseline as being the worst.
ALT Quite an impressive bar chart showing the baseline being a lot worse than the experiments.
Agree we should not be using first few scans as the majority of the image is rendered. Would also like scan rendering info availble from Chrome even if has to be same origin/CORS for now.
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Andrew Galloni retweeted
We're returning from our extended summer break to talk about The Psychology of Performance, and Experimenting with Performance Optimisations with @simonhearne and @AndyDavies
Join us on Tue 13th Oct at 6.30pm (UK)
ldnwebperf.org/events/lwp-oc…
Andrew Galloni retweeted
On 23 April I enabled @Cloudflare’s Mirage and Polish image-optimisation services (page-load spike because I had to purge entire image edge cache). Load times down 1s on average ever since.
Thank you @sandraupson for telling this sad story. He was and still is a major reason I work at Cloudflare.
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So excited about the possibilities the new Workers HTMLRewriter brings that I wrote about the history of HTML parsing @cloudflare blog.cloudflare.com/html-par… . Next part will describe the rewriter written to integrate with workers.
Announcing github.com/cloudflare/lol-ht… - an efficient steaming HTML rewriter/parser with a CSS-selector API in Rust.
blog.cloudflare.com/html-par… describes the dual-parser architecture and Virtual Machine approach to CSS selector matching.
Andrew Galloni retweeted
Workers now has a streaming HTML modification API. Previously you had to parse the whole DOM (using a pure-JS library), modify, and serialize again. Our streaming API only invokes JavaScript for the elements you want to change and streams the rest through. blog.cloudflare.com/html-rew…
Andrew Galloni retweeted
Ruby: ruby -v
Elixir: elixir -v
Node: node -v
Rust: rustc --version
Java: java --version
Go: go version
Erlang: erl -eval '{ok, Version} = file:read_file(filename:join([code:root_dir(), "releases", erlang:system_info(otp_release), "OTP_VERSION"])), io:fwrite(Version), halt().'