GEO & SEO field notes

GEO insights from a professional guesser

Case studies, field notes, and technical findings on AI-driven search, crawling, and indexing.
So your site gets read by humans and quoted by machines.

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Featured

Illustration of one search question routed to seven AI answer engines, each citing a different set of sources
25 min read

What GEO actually is, and why the platforms can't agree on a definition

What GEO is, from the official docs: how ChatGPT, Copilot, Claude, Perplexity, and Gemini rank and cite content, and where Google and Bing openly disagree.

GEO

Latest

Downward-trending line graph showing a sharp drop in indexed pages starting May 2025, labeled "Deindexed"
9 min read

Millions of pages removed from Google's index after May 2025 "silent" update

A sudden spike in "crawled - currently not indexed" pages hit many sites in late May 2025. Here is what changed, the likely cause, and how to recover.

Google updates
Illustrated robot icon with the word 'GoogleOther' crossed out, representing the crawler being blocked
5 min read

Case study: The unexpected impact of blocking GoogleOther on SEO performance

Blocking GoogleOther by IP broke Search Console connectivity, because GoogleOther shares Googlebot's IP ranges. Here's what happened and the robots.txt fix.

Crawling

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