Tidio has a 251-line llms.txt. Crisp has zero. The score gap: +29 points. This single file tells AI assistants exactly what your site does -and without it, they're guessing.

A page built with <div> everywhere looks the same to AI as a page with no structure at all. Semantic elements -<main>, <article>, <section>, <time> -are the markup that tells AI where your content starts, what it means, and how it's organized.

AI engines are citation machines -they need specific facts to quote. A page full of general advice with zero data points gives them nothing to work with.

AI doesn't take your word for it. When you publish content as "Admin" or "Staff Writer," you're telling AI engines that nobody at your company was willing to put their name on it. Person schema, author bios, and credential markup are how you prove a real expert wrote your content.