Blog
I write at the intersection of technology, SaaS, product-led growth, and modern growth strategies — a tactical and strategic guide for founders, growth leaders, and marketers.
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Generative Engine Optimization: Visibility in AI Search
Four studies on what actually earns citations in AI search: controlled experiments, citation-pattern analysis and automated testing. Converging findings.
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600 AI Citations Analyzed: Wrong Language, 5% Congruence
I analyzed 600 AI citations for German YMYL queries. ChatGPT, Perplexity and Google AI agree just 5% of the time, and half the sources are English.
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The Bow Tie Funnel Explained
How the bow tie funnel aligns marketing, sales and customer success across the whole lifecycle, from acquisition to expansion. Interactive walkthrough.
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Is GEO Just SEO Rebranded? Insights from 51 Agency Sites
I analyzed 51 German GEO agencies. The data shows most still rely on SEO tactics while marketing GEO. Here is what companies need to know.
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Employment Effects of AI: Are Juniors Replaced First?
Stanford data shows employment for 22 to 25 year olds in AI-exposed jobs down 13%, while experienced workers in the very same roles grew by 6 to 9%.
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Does ChatGPT make us stupid? Implications from the MIT Study
What MIT measured when people wrote with ChatGPT: weaker memory of their own text, less original phrasing, and less ownership of the resulting ideas.
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Product-led Growth und Content Marketing: Das perfekte Match?
Warum Product-led Growth und SEO-getriebenes Content Marketing sich verstärken, wie sie die CAC senken und woran Sales-led Modelle oft scheitern.
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Core Web Vitals of 100 Startups analyzed (and 3 Quick Wins)
I measured the Core Web Vitals of 100 startup websites and most did not pass. What the data showed, plus the three fixes that recover the most score.
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AB-Testing: Beware of the Contingency Trap (and fix culture)
Split testing can quietly narrow what you are willing to try. What sociology's idea of contingency explains about A/B testing culture, and how to fix it.
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