Google’s llms.txt Guidance Depends On Which Product You Ask

Google Search says llms.txt isn't needed for AI features, while Lighthouse now checks the file for agentic browsing readiness ...

Google adds LLMS.txt check to Chrome Lighthouse

Google says llms.txt is not needed for AI search visibility, but Lighthouse now flags whether sites have one.

Google Launches Core Update Amid I/O AI Search Overhaul – SEO Pulse

Google launched the May 2026 core update, redesigned Search around AI at I/O, released its first AI Mode usage data, and sent ...
Search Engine Roundtable

Google Added LLMs.txt To Its Web Sites For Other Reasons Than Discovery

A month ago, Google added LLMs.txt files to many of its developer and documentation sites including the Search developer docs. As you know, Google pulled it off the Search developer docs within a day ...
Search Engine Roundtable

Google: It Makes Sense To Noindex LLMs.txt

Google's John Mueller said it may make sense to noindex your LLMs.txt file. This way, the file doesn't get indexed by search engines, and then somehow a user lands on it and is confused. John wrote on ...
Mumbrella

Marketers beware: LLMs.txt is just plain dumb

“How fucking stupid.” That was my unfiltered reaction the first time I discovered llms.txt. I’ve said it out loud more than once in the last month. I’m putting it in print here because the polite ...