Knowledge base
These guides explain how ChatGPT, Perplexity, Gemini and Claude choose which sites to cite, how to check whether they cite yours, and what to fix when they don't. New here? Start with the three steps below, in order.
1. Check
Is my site cited by ChatGPT? 4 ways to checkFind out whether ChatGPT already cites you, using your analytics and a small prompt panel.
2. Diagnose
Why isn't my website showing up in ChatGPT? 7 reasonsIf it does not, work through the seven fixable reasons in priority order.
3. Score
Get your free Citation Readiness Score →Score any URL on how ready it is to be cited, and see which signals are missing.
Citation strategy · 5 min read
The analytics check that proves real ChatGPT citations (source chatgpt.com), a 10-prompt panel for the ones nobody clicked, the Bing index check, and a free readiness score for when the answer is no.
Read the guide →Citation strategy · 5 min read
Citation share is your citations divided by all citations across a fixed prompt set, per engine and per period. The formula, a hand-run prompt panel, why the number is noisy, and how it differs from mentions and AI referral traffic.
Read the guide →Foundations · 7 min read
The seven fixable reasons a site is invisible to ChatGPT, in priority order: not in Bing, blocked AI crawlers, JavaScript-only content, nothing extractable, an unclear entity, no corroboration, competitor displacement.
Read the guide →Foundations · 7 min read
The real 2026 levers: get into the Bing index (ChatGPT cites via Bing), allow AI retrieval crawlers, mark up your entity, write extractable content, and get corroborated.
Read the guide →Foundations · 7 min read
Perplexity runs its own live retrieval — so the levers differ from ChatGPT: let PerplexityBot + Perplexity-User in, be the concise best answer, stay fresh, write extractable content, and build corroborated authority.
Read the guide →Foundations · 7 min read
Gemini and AI Overviews both ground on Google’s index — so the levers differ again: be indexed by Google, allow Google-Extended, become a recognized entity (E-E-A-T + Knowledge Graph), add structured data, and publish genuinely-helpful content.
Read the guide →Foundations · 7 min read
Claude runs its own retrieval + leans on a corroborated training presence — so there’s no index to submit to: allow Anthropic’s crawlers (ClaudeBot, Claude-SearchBot, Claude-User), be the clear extractable best answer, and build credible E-E-A-T authority.
Read the guide →Tool comparison · 6 min read
An honest comparison of the main AI visibility / GEO tools — CitationDesk, Profound, AthenaHQ, Scrunch, Peec, Otterly — by entry price, free tier, LLM coverage, and who each fits.
Read the guide →Citation strategy · 8 min read
Aleyda Solis’s 10-point framework, applied page-by-page. Accessible · Useful · Recognizable · Extractable · Consistent · Corroborated · Credible · Differentiated · Fresh · Transactable.
Read the guide →Foundations · 10 min read
Six dimensions, forty-three signals, two hard-blocks. The complete walkthrough of how we score any URL on its ability to be cited by ChatGPT, Claude, Perplexity, and Gemini.
Read the guide →Foundations · 9 min read
How CitationDesk projects citation potential per page archetype. 15 calibrated multipliers, the stacking math, and the four immutable hard-rejects.
Read the guide →Citation strategy · 7 min read
Most pages target either keyword ranking or AI citation. Dual Fit pages target both. Here’s the four-element structural recipe and three before/after rewrite examples.
Read the guide →Citation strategy · 9 min read
The four canonical LLM surfaces, the polling techniques for each (API where available, browser automation where not), and the provenance model every citation event needs.
Read the guide →Citation strategy · 9 min read
AEO is the subset of GEO focused on Google answer surfaces. Here’s the format playbook that wins featured snippets, People Also Ask boxes, AI Overviews, and voice assistants.
Read the guide →Infrastructure · 8 min read
LLMs build entity graphs from coherent signals. Here’s the Person + Organization + sameAs chain that upgrades a site from “miscellaneous” to “citable named entity”.
Read the guide →Infrastructure · 5 min read
What llms.txt is, what the spec says, what to put in it, and what it does not do (no AI provider documents reading it).
Read the guide →Infrastructure · 7 min read
The exact robots.txt block, the two Cloudflare dashboard settings that silently override it, and the 9 AI crawlers every reference site should explicitly allow.
Read the guide →If you want to know where you stand, follow the three steps above. If you want the framework first, read What the Citation Readiness Score actually measures. It defines the six dimensions the other guides refer to, so the per-engine guides (ChatGPT, Perplexity, Gemini, Claude) and the infrastructure guides (llms.txt, AI bot allowlist, entity coherence) make more sense after it.
Or skip reading — email me and I'll send a free sample of the weekly citation-tracking report Pro subscribers get.