I’ve been seeing more discussions around adding an /llms.txt file to websites. Some SEO and AI folks suggest it helps improve visibility in LLM-driven search (Perplexity, ChatGPT, etc.), while others believe it’s still too early to see real benefits.
Before I recommend this for our company website , I wanted to check if anyone here has:
Implemented /llms.txt and noticed any measurable change in traffic or visibility
Heard any official guidance from LLM providers or HubSpot experts
Insights on how or if this impacts AI-driven discoverability
Would love to hear your thoughts or experiences before we move forward.
Currently, the llms.txt file is just a proposal, not a mandatory standard. But there's a good chance it will become important down the road. It's worth thinking about because it gives you more control over whether AI models can use your content and how they use it. This matters especially if you've put serious time and money into creating content and want to protect its value.
From an SEO perspective, getting ahead of this could be a smart move. Better to be ready than scrambling later.
That said, we haven't implemented llms.txt on our LBM Solutions site, and we still get citations from ChatGPT and Perplexity. So it's not a requirement for visibility right now, but it could give you more control as things evolve.
I’ve tested it on a few sites, and honestly, it’s more of an experiment than an SEO tactic right now. Adding an /llms.txt file won’t harm anything, but there’s no real proof it boosts visibility in LLMs like chatgpt or perplexity yet. None of the big providers has published clear guidelines. If you want to try it, just keep it simple with a short intro, a list of your main pages or docs, and host it at the root. Track bot hits and mentions from LLM crawlers over a few weeks to see if anything changes. So far, the results I’ve seen are minor - a few more clean citations, no real traffic impact. It’s low effort, but still early days.
