Fabian Krumbholz smiling against a purple and blue gradient background

Fabian Krumbholz

Principal Web Performance Consultant | Google Developer Expert

I help automotive brands, banks, insurers, and e-commerce shops turn page speed into revenue.

Available for speaking invitations and conference talks. Write to me

Fifteen years as a web developer and ten as a web performance consultant let me talk about accessible, fast websites with both developers and decision-makers: what it takes to build them, and what they are worth.

I’ve optimized web technologies from the moment they shipped, always obsessing over one thing: how fast a page feels to the person actually using it. And no era comes close to how exciting this one is.

The problem I am working on now: getting the same quality out of AI tools that a senior developer builds by hand — accessible, fast, and running in every browser. Hundreds of hours in, I am a little further along than most, and still experimenting and getting better at it every day. YouTube shows you the demos; I show you the honest version, what worked and what did not.

I build that way for a living, too. At Speed Kit I create AI agents that automate web performance testing, and the data tools that tie what they measure to business outcomes — production systems, not weekend prototypes, and the reason I can put a number on speed as readily as I can explain it.

I’m a Google Developer Expert for Web, and I speak regularly at DevFests and other GDG events across Europe and North Africa. Generous people taught me this craft, and passing it on is a pleasure. You’ll find me talking with attendees before the talk, after it — and usually until someone locks the venue.

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