llms.txt

Why it matters

llms.txt gets sold as a shortcut to AI visibility, so the honest version is worth knowing. The proposal at llmstxt.org suggests a plain Markdown file at /llms.txt with the site name, a short summary, and sections of links to the pages an AI tool should read first, so a model with limited context can find the good material without wading through navigation and scripts.

It is a proposal, not a standard. And Google's own guidance is direct: you don't need to create new machine readable files, AI text files, or markup to appear in AI Overviews or AI Mode, and its guide to generative AI search lists llms.txt among the myths. Staff have compared it to the old keywords meta tag. Other AI tools may or may not read it, and few have said they do.

When it is worth adding

• You publish documentation or a lot of reference material, where a clean index helps developers and coding assistants that fetch it.
• It costs you an hour. If so, add it, keep it short, and keep it honest.
• You want a tidy map of your own best pages to check against what the site actually links to.

How to write one

1. Start with an H1 naming the business.
2. Add a one-paragraph blockquote saying what you do and where.
3. List your 10 to 20 most useful pages as Markdown links, each with a short note.
4. Update it when those pages change.

Common mistakes

• Expecting rankings. For Google Search, nothing changes.
• Spending a sprint on it. The time is better spent on pages people want to cite: clear answers, real facts, good structure and sound crawlability.
• Listing pages that block crawlers or are not indexed.

BridgeE treats it as a small extra inside broader AI search optimisation: worth an hour, never the strategy.