I Checked 319 Indie Blogs for llms.txt. 12 Had One.
Everyone in SEO is arguing about llms.txt. Almost nobody has actually shipped one. I pulled a neutral sample of 319 independent blogs and checked every one by hand: only 12 had a real file, the shape varies wildly, and the ones that exist mostly ignore the spec. Here's the full dataset, the method, and what a 4% adoption rate means if you're deciding whether to bother.