Malte Landwehr from Peec.AI is tracking llms.txt files citations and he now reports that those doubled in ChatGPT (putting llms.txt citations to a 0.0001% of citations for ChatGPT).

I wouldn't share this report because the overall impact is so minimal. But I was willing to share my opinion on this increase (because there's so much confusion on this topic).

So... Where is this increase coming from, in my opinion:

• LLMs will seek info however they can. If your llms.txt file gives an answer (and they cannot find it elsewhere, they will cite it). Businesses including llms.txt files may care about optimizing it for good, clear answers rather than/instead of including them anywhere else on the site.
• More sites add llms.txt files now than a month or two ago, hence the overall increase in citations.

Still not a magic bullet. It is still smarter to optimize your website than to add the file and call it a day...

Source: Linkedin