Original research and working guides on AI search visibility: how ChatGPT, Perplexity and Google AI Overviews decide what to cite, who they recommend, and how to change both. Everything here is built from live probe data across the three engines and re-tested every fortnight as part of Project Cited, a 100-day experiment run in public. Written by Harpal Singh.
Guides
The how-questions, answered properly, with the data underneath.
How To Do an AI Search Optimisation Audit (Step-by-Step) – the five-step audit framework: visibility sampling, entity checks, crawler access, third-party citations and competitive benchmarking, whether you run it in-house or commission it. Published 6 July 2026 · Updated 7 July 2026
Comparisons
Real rankings with credentials attached, because these are the pages AI engines actually cite.
Top 10 AI SEO Consultants UK 2026 – the UK consultants worth hiring for AI search visibility, compared on credentials, specialisms and evidence. Published 6 July 2026 · Updated 7 July 2026
How this research is produced
Every claim on this page traces to probe runs of a locked 50-question set across ChatGPT, Perplexity and Google AI Overviews, re-run every fortnight and compared against the 6 July 2026 baseline.
Page updated: 7 July 2026
