Pillar Pages and Topic Clusters: How to Build Them Correctly
What a pillar page is and is not, how a topic cluster is built and linked, and how SiteRank AI scores pillar candidates from links, relevance and length.
Knowledge hub
Guides on SEO, GEO and AI visibility
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The whole library in publication order, for anyone who would rather browse than be guided.
PerplexityBot and Perplexity-User Explained
Perplexity runs two agents, and states that one of them generally ignores robots.txt. Here is what each does and how to configure for it.
Passage-Level Content Structure for Search and AI Retrieval
Google runs a passage ranking system and retrieval systems index chunks. Here is how to structure content for that without writing artificially for machines.
OpenAI Crawlers: GPTBot, OAI-SearchBot and ChatGPT-User
OpenAI runs four documented agents with independent robots.txt settings. Here is what each does, and exactly what blocking it costs you.
How to Monitor the Questions AI Users Ask About Your Brand
Building a prompt library, sorting it into intent clusters, sampling enough to mean something, and keeping the cost of an AI visibility programme under control.
How to Measure AI Mention Rate and Citation Rate
Exact numerators, denominators and confidence intervals for mention rate and citation rate, with worked numbers and the limits of each figure.
Internal Linking for SEO, Retrieval and AI Discovery
What Google actually says internal links do, how anchor text carries meaning, how to find orphan pages, and which retrieval claims are evidence-backed and which are not.
How LLM Visibility Monitoring Actually Works
What an AI visibility tool can honestly observe, how controlled prompts and provider APIs produce it, and why a "ChatGPT rank" is not a measurement.
How AI Search Citations Change Over Time
Why the same prompt cites different sources next week, what actually moved, and how to tell a real change from sampling noise.
Google Search and AI Experiences: Do You Need Special GEO Markup?
Google says there are no additional requirements or special optimisations for its AI features. Here is what that means, and which controls actually exist.
Entity Clarity: Helping Machines Understand Who You Are
One name, one URL, one identity, expressed consistently in prose and in markup. What is standard, what is emerging, and what is guesswork.
Why Being Crawled Does Not Mean Being Cited by an LLM
Crawled, retrieved, used, cited, recommended — five distinct steps, each with its own preconditions and its own evidence. Conflating them is costly.