Google has updated its generative AI search guidance to clarify that while LLMs.txt files do not impact Google Search rankings, site owners are free to use them for other platforms.

Key Points

• Google revised its Search Central documentation to explicitly state that LLMs.txt files and similar markups are ignored by its own generative AI search features.
• The update clarifies that using these files for third-party AI services or systems will neither help nor harm a website's visibility within Google Search.
• The previous guidance was misinterpreted by some as a broad discouragement against using AI-specific markup files across the entire web ecosystem.
• Google implemented these changes to address community confusion and distinguish between its own search requirements and those of other generative AI platforms.

Why it Matters

This update provides necessary clarity for webmasters and SEO professionals who manage content for multiple AI-driven search surfaces. By explicitly permitting the use of these files for other systems, Google acknowledges the growing complexity of optimizing for a diverse landscape of generative AI tools.