llms.txt Review 2026
The /llms.txt file standard
What is llms.txt?
llms.txt is a proposed open standard for adding a /llms.txt markdown file to websites to provide LLM-friendly content and guidance. It is a specification rather than a commercial product.
Best for
Mixed
Use cases
- Make site content LLM-readable
- Provide documentation to LLMs
Key features
Markdown-based LLM-friendly content spec
Curated overview for LLMs
Coexists with robots.txt and sitemap.xml
Pricing
Model
free
Price range
Open specification, free to adopt
Free tier
Yes
Integrations
llms.txt integrates with 3 tools including:
VitePressDocusaurusDrupal
llms.txt alternatives
Other SEO & Content tools worth comparing.
Searchmetrics
Where Enterprises Go to Win AI Search
Adaptify SEO
The SEO and AI visibility platform built for agencies
Addlly AI
The AI Search Visibility Platform for Enterprise Brands
Ahrefs
Make your business discoverable in search, AI, and beyond.
AI Monitor
Monitor and boost your brand's visibility on AI search
Abun
The All-In-One Toolkit for SEO & Growth Marketing