llms.txt: Google Says Search Ignores It, Yet Uses It Itself
Google's AI search guide says llms.txt isn't needed and Search ignores it, while its own teams use it and a 137K-site study finds 97% go unread.
SEO ·
Search engine optimization is the practice of helping content get discovered through search. That means earning visibility in results pages and, increasingly, in the answers generated by AI systems. For years, SEO centered on understanding how Google crawls, indexes, and ranks pages. That foundation still matters, but the landscape around it is changing faster than ever.
Generative AI has reshaped how people search. AI-generated summaries now appear above traditional results for a growing share of queries, including searches for specific brands. That changes how much traffic actually reaches websites.
Chatbots and AI assistants cite sources in their answers, and early analysis suggests those citations are closely tied to conventional search rankings. This has fueled a debate over whether "answer engine optimization" and "generative engine optimization" are genuinely new disciplines. Google maintains they are still SEO, even as a wave of new tools promises to measure brand presence inside AI answers.
At the same time, search engines keep tightening policies against low-quality, mass-produced content. The economics between platforms and publishers are also being renegotiated as AI systems draw on published work.
This hub tracks:
Whether you manage a website, lead marketing, or follow the search industry, this is where to keep up with the shifts.
Google's AI search guide says llms.txt isn't needed and Search ignores it, while its own teams use it and a 137K-site study finds 97% go unread.
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