
How Perplexity’s Citation Algorithm Differs From ChatGPT’s for UK Queries
ChatGPT and Perplexity share only about 11% of cited domains. Three levers, retrieval, recency and source-type, explain why the same UK query returns different sources.

ChatGPT and Perplexity share only about 11% of cited domains. Three levers, retrieval, recency and source-type, explain why the same UK query returns different sources.

A single content brief can optimise for Google ranking, AI retrieval and AI citation at the same time. Here is the three-layer template, with the checklist for each layer.

Perplexity leans on primary and news sources; ChatGPT leans on Wikipedia and reference sites. Here is what the published data shows and two publishing playbooks that follow from it.

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.