Website owners in 2026 will need to manage three distinct plain-text files: robots.txt, sitemap.xml, and the new llms.txt. Robots.txt controls which web paths bots can access, sitemap.xml lists all indexable pages for search engines, and llms.txt curates a select list of high-signal pages specifically for AI models during inference. These files serve complementary roles in managing website access, ensuring comprehensive coverage, and providing targeted information for AI. AI
IMPACT Clarifies the function of llms.txt for AI models, distinguishing it from robots.txt and sitemaps.
RANK_REASON Article explains a new file format for webmasters related to AI model interaction.
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