Kyle Poyar’s Growth Unhinged

Kyle Poyar’s Growth Unhinged

You need a better testing strategy

Lessons tracking 25,000 split tests from the top tech companies

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Casey Hill
May 14, 2025
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👋 Hi, it’s Kyle Poyar and welcome to Growth Unhinged, my weekly newsletter exploring the hidden playbooks behind the fastest-growing startups.

“Hey, can we test this?” If those five words sent a shiver down your spine, today’s guest post might be for you. The tech industry has a borderline obsession with testing. In my experience, the vast majority of this testing is garbage-in, garbage-out — leaving us with few new insights and a lot of wasted effort.

My friend, and past contributor, Casey Hill recently joined DoWhatWorks as CMO. DoWhatWorks removes the guesswork from website optimization by analyzing growth experiments across 2,000+ companies (they’re tracking 25,000 tests and counting). Casey chimes in this week to share exactly what he’s learned from all that data.

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Casey Hill's avatar
A guest post by
Casey Hill
CMO at DoWhatWorks. We start with a technology that crawls the web and identifies any page variants. Then it analyzes what is being tested and flags those elements. Finally, our team of researchers monitor and declare winners.
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