For those playing with the Chrome Soft Navigations Experiment, we've published a Changelog of all the changes to this metric by Chrome version:
chromium.googlesource.com/chromium/src/+…

We'll look to keep it up to date as we iterate this API.

🪩 Web Performance calendar day 23
🔗 calendar.perfplanet.com/2023/inp-perfo…
🍹 Rick Viscomi (Rick Viscomi) analyzes INP performance using real-world RUMvision data

DevTools update! We've added whiskers to the Interactions lane of a Performance trace:

We're making the web faster 🙏

Core Web Vitals & Chrome saved users 10,000 years of waiting for pages to load: blog.chromium.org/2023/11/how-co… ~ Learn about the WebPerf work that enabled this in our new post.

Rum insights: excites!

Tim Vereecke

This wiki article from MobX folks was first written in 2016, and I think it still perfectly captures the use cases for Observables vs Signals:
github.com/mobxjs/mobx/wi…

Well it seems like a lot of you are getting emails from Google Search Console warning the INP on your site could be improved and you don't know what to make of them! So let's take a deep breath and delve into what this all means and how you should action them. 🧵 (1/20)

As a user-focused #webperf metric, does Interaction to Next Paint actually correlate to user behaviour? Cliff Crocker analyzed RUM data from four different sites and found that overall there's a correlation between INP and conversions.

speedcurve.com/blog/interacti… #UX #CoreWebVitals

Common Slugs:

- Longa mora inputus
- Reversio eventus
- Mora praesentationis

Brian Louis Ramirez – @[email protected]

We've updated the Web Vitals extension to provide more useful debugging information to help you optimise your Core Web Vitals.

Read all about the new console logs here:
web.dev/debug-cwvs-wit…

Long Animation Frames (LoAF):
explainer is a bit more comprehensive now and merged to main. github.com/w3c/longtasks/…

Want to try it early ? Download Chrome Canary, enable experimental web-platform features, observe 'long-animation-frame' performance entries.

#webperf

New York Folks! I'll be in town to chat INP with Michal Mocny at Web Performance NY on April 4th! Hope to see you there!

meetup.com/web-performanc…

This is one of the best talks I've seen in ages. How did I miss when it went up months ago?!

youtube.com/watch?v=PGLwRv…

Noam Rosenthal

use(cache(async function()...))

NEW POST: We looked at 100,000+ real websites to understand how web frameworks actually perform across CWV, Lighthouse and more.

astro.build/blog/2023-web-…

On Boomerang version 1.66 and want to monitor INP in mPulse?
Create a custom timer with settings:
BOOMR.plugins.EventTiming.metrics.interactionToNextPaint
#webperf #rum #inp

I think about this problem in the context of INP and responsiveness.

Just because an interaction paints quickly, doesn't mean it was useful, or did what the user expected.

INP doesn't measure user value, just performance. It is necessary to be fast, but not sufficient.

Wondering what you can do to optimize Interaction to Next Paint (INP)? Phil Walton and I got you covered: web.dev/optimize-inp/ #webperf #javascript