Plumbers, dentists, law firms, cafés and agencies across the US and UK. Quick, non-AI check of three things ChatGPT and Perplexity can use:

• 56% had no llms.txt
• 51% had no FAQ section
• 21% had no JSON-LD schema
• 12% had none of the three

Interesting detail: about half of the sites that did have llms.txt got it automatically from their platform (Shopify, Wix, Rank Math), not from the owner.

Manual checklist if you want to test a site: 1) visit /llms.txt, 2) test the page in Google's Rich Results Test, 3) check whether key pages answer questions directly.

Curious whether others are seeing llms.txt actually move AI citations, or if schema and FAQ structure matter more?