Joost de Valk

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@jdevalk

Investor @emiliacapital • Founder @Yoast • Open Source aficionado currently playing with Astro & EmDash • Husband to Marieke • Father of 4 • 🇪🇺🇳🇱🇮🇹️️

Wijchen, Nederland joost.blog/about-me/ Joined March 2009

2.8K Following 17K Followers 10K Posts

Latest posts 5

Joost de Valk @jdevalk 7h

Two OpenAI engineers want AI agents to tell websites which network you're on, your country and time zone when they browse for you.

The agent's operator decides what gets shared. You're not asked.

They're trying not to get blocked...

Joost de Valk @jdevalk Oct 22

This. And among what we need to ask for is funding for our most important open source pillars. Look up how much funding the PHP Foundation gets, and then look at the absolute chaos we had yesterday because of a big security issue in it. These two things are not aligned.

Jason D. Clinton 🔸 Verified account @JasonDClinton Oct 22

as bad as things have gotten in the past 4 days, they are going to get a lot worse before they get better. security leaders, never let a crisis go to waste: please go to your boards and ask for help right now. not for ai, for the basics. (we need to hold on for ~18 months.)
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Joost de Valk @jdevalk Oct 20

SEO Week has been renamed to “Relevance.” SEO became GEO became “relevance engineering.” Nice wordsmithing, but relevance has been the core of marketing for a hundred years. And from an SEO perspective, the new name is less relevant. 🧵

Joost de Valk @jdevalk Oct 17

Hey @KPNwebcare - hoe doe ik die wijziging hier? Waar ik ook klik: niks…

Joost de Valk @jdevalk Oct 16

"we're learning that there's web standards that actually improve how our stuff works”

Maybe have a scroll through specification.website

specification.website The Website Specification A platform-agnostic, full specification of the technical features a good website should have. Built in the open under an MIT licence.

ClaudeDevs Verified account @ClaudeDevs Oct 16

We keep improving performance across Claude, and you may have noticed it starts responding sooner!

Claude Code now gzips the conversation it sends on every turn, so it reaches the model faster. Cloud sessions also start up as soon as you start typing.

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