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.

Voice assistants need to pick which paragraph to read aloud from your page. Without Speakable markup, they guess -and they frequently guess wrong, reading your cookie notice.

AI can't see your images. It reads the markup around them. A product photo with alt="image1.jpg" tells AI nothing. A figure with a descriptive figcaption and 8-word alt text tells AI exactly what it's looking at - and that context feeds directly into citation decisions.

AI engines increasingly prioritize content from people who have direct experience with their topic. Generic "top 10 best" listicles written from secondhand research score poorly. Pages with specific actions taken, limitations discovered, and numeric results earned score well. First-Hand Experience Signals measure whether your content shows evidence of real-world involvement.