.. when a copy is available at the CDN Point of Presence (PoP)/edge level, it can be served directly, bypassing the central Cloudflare systems.

Current status via www.cloudflarestatus.com

4/4

but there's still a regression in number of datapoints as of 13:25 CET 😬

Further research of our data shows that sites _not_ serving pages with `cfCacheStatus: HIT` are impacted the most.

This makes sense: ..

3/4

In other words: a clear dip in datapoints in the last 3 hours.
Cloudflare reported it at 12:48 CET, 18 minutes after first sites using RUMvision - Core Web Vitals monitoring were affected.

Based on latest data, it seems like Cloudflare recovered things.

2/4

Whoops, @cloudflare.social outage. And we're seeing it quite clearly in our Real User Monitoring (RUM) data:
📅 top: Nov 17th 10:30 - 13:30 CET
📅 bottom: Nov 18th, 10:30 - 13:30 CET (i.e. )

1/4

Safari catching up: INP and LCP support in the same beta release Real User Monitoring

#LCP and #INP support in #Safari really coming close now (maybe even in 2025?) as Safari 26.2 Beta Release Notes includes:
- support for the Event Timing API
- Largest Contentful Paint metric

Great work by the #Webkit team!

A blogpost:
www.rumvision.com/blog/safari-...

😬 😅

🏴‍☠️ 🥃 😜

#perfnow early morning performance session with @stuart-mcmillan.com (although he did a longer version 😅)

Now on to the real event @ @perfnow.nl! 😍

My go-to source is a Dutch site as it also offers hourly overview per day and actual outcome/weather is often somewhere in between Google Weather (typically more negative forecast) and @buienradar.bsky.social (Dutch only though as far as I could find):
www.buienradar.nl/weer/Amsterd...

@perfnow.nl Amsterdam weather update for those that haven't packed yet:

Not too bad during the perf days as it will become slightly warmer + less rainy from Wednesday to Friday.

Most akward part was that an employee saw me taking a picture, asked if it was a good one, and me trying to explain that it's funny as it's a specific term in my industry 😅

@andydavies.me need a LoAF image for your @perfnow.nl talk?

I just ran into this at Schiphol 🤓😆

#LoAF #INP

Occasionally, yes 🤓 😄

Curve continues, more browsers being updated after lunch? 😅

Nerdy stuff! @mozilla.org #Firefox just enabled support for #INP with v144 🎉

I dived into our raw RUMvision data. And yep, can confirm that it works when using Google's web-vitals #JavaScript library 😍

(updated) article + chart + baseline badges in a blogpost:
www.rumvision.com/blog/firefox...

I figured I'd start my quiz with an easy question... I was wrong 😅

SEO Benelux 2025 Real User Monitoring

You can already download the slides (including results if you attented) via our latest blogpost:
www.rumvision.com/blog/seo-ben...

4/4

And I picked up a few insights from the audience too:
→ what tools they typically use
→ how familiar they are with each individual metric
→ if they know who @divingfor.fun is (my very first quiz question which appeared to be a tricky one 😅)

3/4

Which actually proved my points perfectly:
→ web #performance subject still matters as conditions are never the same
→ field data (e.g. #CoreWebVitals) is different from my testruns back home
→ if 75% managed to participate, I’ll take that as a win (just like Google’s 75th percentile 😜)

2/4

Weekend! But also: looking back at quite the event, venue and community! I’ve only spoken to a purely #SEO audience a handful of times, but this one was truly energizing!

A stable internet was needed to pull off the live quiz.
Some attendees couldn’t even join in 😬

1/4

I particularly like the name&shame list, as I sometimes like to call it when talking about our #thirdParties dashboard in RUMvision - Core Web Vitals monitoring

But also the value of percentiles and the pirate ship in combination with #RUM 🏴‍☠️ 🥃

2/2

Aftermath sketch of our talk 🤩

Someone in the audience of which I thought was taking notes the old school way, appeared to have been making sketches 🤓

Huge thank you to Jeroen Heijmans for doing + sharing this!

1/2

Many many thanks! Very nice 🤩

SEO Benelux Conference 2025 - Super early bird discount! Join the SEO Benelux Conference 2025 in Antwerp. Learn top SEO strategies, network with experts, and elevate your digital presence.

→ with an SEO tailored talk as we walk through #CoreWebVitals, #Lighthouse, #CrUX, #GSC
→ and a handful of memes and questions in an interactive talk (*)

There are still tickets available so hopefully see you there!
seobenelux.com
(*) be sure to bring a fully charged mobile device 😜

2/2

New speaking gig confirmed: #SEOBenelux 🤟

Happening next week in between my 2 other scheduled talks this month!

But this edition and talk will be different:
→ pure #SEO audience
→ bringing me back at another SEO event
→ this time in #Antwerp, October 10th

1/2

Interop 2026: Key APIs for sitespeed & RUM Real User Monitoring

To make it easy, I’ve bundled all the performance-related proposals into a blogpost
👉 www.rumvision.com/blog/interop...

🚨 Today is the last day, so your wishes + help is welcome (even if this includes voting for other ideas than the ones we listed) 💪

4/4

Building RUMvision has brought me closer to shaping the web than ever before.

Best part?
With the yearly Interop, you can too:
→ By proposing your own ideas
→ Or by simply upvoting existing ones

(I submitted a few proposals this year and feel very nerdy now 🤓)

3/4

1️⃣ Browser vendors like Chrome and Edge actually listen to feedback
2️⃣ They even run origin trials, so you can test features before they ship
3️⃣ And every year, there’s Interop, where major browsers decide what to align on and which features to prioritize

2/4

Interop 2026: Key APIs for sitespeed & RUM Real User Monitoring

Many people don't know this: you can help shape the web with just an upvote (But: Today is the last day!)

When I started frontend dev 20+ years ago, browsers felt untouchable to me: everything is set in stone and decided already.

But over time (and especially since 2021) I learned that:

1/4

Meet Magento Italy 2025 - Roma 25 Settembre 2025 - Meet Magento presented BY MEET MAGENTO MEET MAGENTO Roma 25 settembre 2025 “al mio segnale scatenate Magento!” Biglietti CON IL PATROCINIO DI Perchè Meet Magento Dal 2008, la passione per Magento ci ha guidati, cu...

There might still be tickets left!

Info and tickets:
it.meet-magento.com