llms.txt is a proposed, experimental plain-text file served at /llms.txt that acts as a curated highlight reel — pointing large language models at your most reference-worthy pages. It does not control indexing and does not train the model; it's intended to help AI focus on your best content at inference time. It is a community proposal, not an official standard from any major AI provider.

Does llms.txt actually work?

The honest answer is: unclear and unproven. It's in an experimental phase, and most current models do not read it in practice. Some providers are reportedly beginning to look for it, but there's no guarantee it affects whether you get cited. It's low-effort and low-risk to ship, but it should never be sold as a needle-mover.

How is llms.txt different from robots.txt and sitemap.xml?

robots.txt is the bouncer — it tells crawlers what they may not access. sitemap.xml is the table of contents — everything crawlable. llms.txt is the highlight reel — the few pages you most want models to focus on. robots.txt and sitemap.xml are established standards that crawlers obey; llms.txt is an experimental proposal with no guaranteed support.

How do I create an llms.txt file?

Create a plain-text file, UTF-8 encoded and under 100kb, served at yourdomain.com/llms.txt. List your highest-value pages with short descriptions, often using Markdown headings and links. Keep it current. It's cheap to ship for sites you already control, but treat it as low-priority insurance rather than a core tactic.

Should I prioritise llms.txt for AEO?

No. Compared to answer-first content, valid schema, server-side rendering, and off-site authority mentions, llms.txt is a low-leverage move with unproven payoff. Ship it if it costs you ten minutes, but spend your real AEO effort on the levers that demonstrably move citations.

What is llms.txt — and does it actually do anything?

llms.txt is a proposed file pointing AI models at your best pages. Here's what it is, how it differs from robots.txt, and the honest case on whether it works.

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Index Right helps content-heavy businesses protect crawlability, indexability, metadata, structured data, Core Web Vitals, and answer-engine visibility during technical SEO migrations.

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What is llms.txt — and does it actually do anything?

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