SEO & AI search insights
Here I share what actually works in SEO and AI search, from hands-on work with B2B clients every day, not theory. Concrete tactics, tests and learnings on how visibility on Google and inside AI answers turns into a predictable stream of qualified inbound leads. Run on our own software, measured against one goal: pipeline.
If you'd rather not shoulder the execution yourself: I work with B2B teams in Munich, Berlin and Zurich. All markets at a glance
InsightsSeptember 8, 2026
Does Your B2B Website Need an llms.txt? What 300,000 Domains and Our Own Bot Log Show
llms.txt is currently being sold as a mandatory GEO measure. Two large studies, Google's own documentation and our server-side bot tracking say otherwise: over 83 days, 23 AI crawlers made 14,556 requests to fento.ai, and not one of them was for the llms.txt. What the file is, what it is actually good for, and how to check your own site in five minutes.
10 min read
InsightsAugust 24, 2026
Prompts for AI visibility tracking: how many phrasings you actually need
How many phrasings does one tracked prompt need when you measure AI visibility? We asked the same question ten different ways across ChatGPT, Gemini, AI Overview and AI Mode. On the chat engines wording is irrelevant, because the model reshuffles anyway. On Google's surfaces it decides everything. 49 runs, with a control group.
14 min read
InsightsAugust 21, 2026
Fanout queries: what they are and what they mean for your AI visibility
When someone asks ChatGPT or Google AI Mode a question, it doesn't become one search. It becomes several. Those subqueries are called fanout queries, and they decide who gets cited. What's actually going on, which numbers are genuinely backed by data, how Google and ChatGPT are drifting apart, and why 43% of fanouts on non-English prompts run in English.
11 min read
InsightsAugust 14, 2026
Claude Now Watermarks Every Text It Writes: What That Means for Content Marketing, SEO and GEO
Anthropic now marks every text Claude generates with an invisible watermark that survives copy-paste. The trigger is Article 50 of the EU AI Act; the consequences hit everyone producing content with AI: detection turns from guesswork into proof, and early data shows ranking and citation penalties for raw AI text. What happened, how the watermark works, and what to do now.
5 min read
InsightsJuly 6, 2026
GPTBot, ClaudeBot, ChatGPT-User: Which AI Bots Are Reading Your Website Right Now
Right now, as you read this, an AI bot is probably reading your website, and your analytics will never show it. There are three very different kinds: training crawlers like GPTBot and ClaudeBot, search indexers like OAI-SearchBot, and the most interesting one, live readers like ChatGPT-User. Who they are, why GA can't see them, and how to track them yourself with about 50 lines of server-side middleware.
6 min read
InsightsJune 23, 2026
Google Built an AI to Catch AI Slop. The Search Loophole Is Closing.
We use AI to scale content. Google now uses AI to catch it. A new Google research paper shows synthetic slop can be detected at scale, and if your AI search strategy is built on volume, that's a warning. Here's why the loophole is temporary, and what actually wins now.
4 min read- Does Inbound Really Work in B2B? Four Startups and Exactly What They Did
InsightsJune 18, 2026
Does Inbound Really Work in B2B? Four Startups and Exactly What They Did
Long sales cycles, small audiences, rational buying: how is a blog supposed to help? Four startups that demonstrably built their growth on inbound, with real numbers, sources, and exactly what they did from step one. Plus: which engine fits your product.
8 min read 
NewsJune 15, 2026
AI Overviews & Copilot: How to Measure Your Real AI Search Visibility
Until now, AI visibility was a number you had to guess. Google and Bing now give you real figures from real user queries. Here's how to measure whether you actually show up in AI Overviews, AI Mode and Copilot, beyond GEO tools.
10 min read