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Why is Meta Pixel suddenly showing up more often in slow interactions? After spotting the same INP regression across multiple websites, we dug into its click handling as well as historic versions and found some interesting clues.

The WebKit team has rolled out a notable change in the 26.2 beta with support for two major performance APIs. This update moves Safari significantly closer to full Core Web Vitals support.

Mozilla Firefox has just shipped support for Interaction to Next Paint (INP), one of Google’s Core Web Vitals metrics focused on responsiveness. This is great news for anyone monitoring site speed and user experience.

In 2024 we weren't only the sponsor but were also speaking at a sold out Performance.now() conference.

You'll find the slides of the "We Love INP & LoAF" talk at We Love Speed in Nantes.

When debugging INP, it might be tempting to first look at elements that visitors interacted with. However, looking at this alone might be misleading and time-consuming.

We're still buzzing after yesterday's incredible events at Google I/O! It was a double Dutch delight for RUMvision, as both our upcoming integration with Google Baseline and our work on INP measurement were featured at Google's biggest event of the year.

Google Chrome released a beta version of web-vitals.js (v4 beta) with a focus on INP and LoAF. We gave it a spin.

It’s March 12th, 2024, a big day in the web performance community! Today we see Interaction to Next Paint take its (rightful) place in the Core Web Vitals, replacing First Input Delay (FID) as the primary metric for measuring website responsiveness and interactivity. This comprehensive guide, which includes insights from 13 web performance specialists, will provide you with the knowledge and practical advice you need to master INP.

We have an INP date. And this doesn't only mean that FID stops being a Core Web Vital metric. FID is facing more consequences and will never be the same again. Here's what to expect.

We all knew it was going to happen, but Google just announced the exact date that Interaction to Next Paint will become a Core Web Vital. Here are the key dates and steps to pass by March 12, 2024!

You may have received a notification in Google Search Console that certain sites are having Interaction to Next Paint problems (INP). In this article we'll help you find the solution and pass Core Web Vitals on INP .

The new LoAF API makes debugging a high INP a lot easier and more insightful, aside from being a new technique it sounds fun. Read and see more about how the LoAF API can help you and how RUMvision makes it insightful for you.

Good news! The Interaction to Next Paint will replace the FID as a Core Web Vital per March 2024. Just like first input delay (FID), the Interaction to Next Paint puts focus on the responsiveness of the webpage. To understand how fast your page visually responds to user input, throughout the page's life cycle, Interaction to Next Paint records the latency of all interactions. The Interaction to Next Paint of the page is the highest value of those interactions - or a close approximation of the highest value for pages with many interactions.