Make your site readable to AI engines. /llms.txt is the new robots.txt — a simple file that tells ChatGPT, Perplexity, Claude, and Gemini which pages on your site they should pay attention to. Check yours in 5 seconds. Free, no signup. Powered by NextGenIQ's AI visibility platform.
A plain-text file that lives at the root of your site (yourdomain.com/llms.txt). It lists the pages on your site that matter — your product, pricing, docs, key articles — so AI engines know which URLs to read first when someone asks about your category.
Think of it like a sitemap, but written for language models instead of search crawlers. A well-formed llms.txt makes it dramatically more likely that ChatGPT and Perplexity will cite the right page from your site, not a random press release or a stale FAQ.
Adoption is uneven across engines today, but the cost of writing one is near zero and the upside is being correctly understood by every AI engine that already respects the standard.