How to Rank in ChatGPT: A 2026 Guide
Ranking in ChatGPT means being cited inside its answers, not holding a link. Here are the seven proven GEO tactics that lift AI citations, with the research.
Optimising for ChatGPT Search: 12 Evidence-Based Tactics Ranked by Citation Lift
Most ChatGPT SEO advice treats every tactic as equal. This playbook ranks 12 tactics by the effect size each one showed in a published study or controlled test.
The Knowledge-Graph Entity-Gap Audit: A 7-Step Method to Find What AI Engines Cannot See
AI engines reason over entities, not keywords. This 7-step audit compares your content to a Wikidata or Google Knowledge Graph snapshot to find the entities you are missing.
Generative SEO Test Design: A 6-Step Framework to A/B Test AI Citations Without False Positives
AI citation rates swing day to day, so naive before-and-after tests mislead. Here is a 6-step statistical framework for sample size, control groups and significance.
10 On-Page Changes Ranked by Citation Lift: A 4-Week UK Micro-Experiment
We took 10 UK pages, applied one isolated change each, and measured citation rate after 4 weeks. Direct-answer block lifted +19pp; meta-description rewrites produced 0pp. Full ranked list with implementation time.
The UK AI Marketing Agency 4-Quadrant Map: Where 50 Firms Cluster
We mapped 50 UK AI marketing agencies on a 4-quadrant grid: strategy vs technical operations, creative vs analytical. 34 cluster in strategic-analytical; only 3 sit in the technical-creative white space.
The 8-Capability AI SEO Expert Matrix: A 100-Respondent UK Survey
We surveyed 100 self-described AI SEO experts on LinkedIn and scored each against 8 capabilities. The median respondent demonstrated 3.7 of 8. Top decile averaged 6.4; bottom decile 1.8. Full distribution.
5 RFP Questions That Filter Out Fraudulent UK AI SEO Agencies
We assessed 23 UK AI SEO and GEO agencies against a 5-question RFP filter testing non-fakeable capabilities. Only 6 passed all five. The filter cuts a typical long-list by two-thirds.
14 ChatGPT Ranking Factors With Confidence Scores: Q1 2026 Prompt-Leak Evidence
We synthesised public ChatGPT prompt-leak reporting, peer-reviewed retrieval research and our 50-query AiBoost behaviour test into a single 14-factor map with confidence scores. 5 high-confidence, 6 medium, 3 low.
GEO vs SEO: A 12-Signal Transferability Map Backed by 2024-2026 Data
We mapped 12 ranking signals against classic SEO and generative engine optimisation. 5 transfer cleanly, 4 do not, and 3 flip. Anchored to Ahrefs 2025, Profound 2025, arXiv 2024 and AiBoost UK panels.