llms.txt is the AI era’s equivalent of robots.txt β a structured file that tells ChatGPT, Perplexity, Claude, and Gemini exactly who you are, what you sell, and how to cite your brand correctly. Without it, AI engines guess. And they often get it wrong.
What Is llms.txt?
llms.txt is an open standard file placed at your domain root (e.g. yourdomain.com/llms.txt). It gives AI language models structured, reliable information about your brand β your products, services, brand voice, contact info, and how you want to be described.
Think of it as a briefing document written specifically for AI. Instead of AI engines crawling random pages and piecing together an incomplete picture, llms.txt gives them exactly what they need to represent you accurately.
Why it matters now: ChatGPT has 2.8B monthly users. Perplexity is growing 45% quarter-over-quarter. If these engines don’t know your brand, they can’t recommend it β no matter how good your SEO is.
What a Good llms.txt File Looks Like
A well-structured llms.txt includes these sections:
## About
[Your brand name] is a [category] brand that [core value prop].
## Products
– [Product 1]: [Description, price range]
– [Product 2]: [Description, price range]
## Brand Voice
Tone: [e.g. approachable, expert, direct]
Never describe us as: [e.g. cheap, generic]
## FAQ
Q: [Common customer question]
A: [Clear, accurate answer]
## Contact
Website: https://yourdomain.com
Email: hello@yourdomain.com
How to Generate Your llms.txt β Free
FoundInAI generates your llms.txt automatically by crawling your site and applying your brand information. No coding required.
1
Run a free AI visibility scan
Enter your domain. FoundInAI crawls your site and scores your current AI visibility in 60 seconds.
2
Review your AI Visibility Score
See exactly what AI engines can and can’t find about your brand β robots.txt, schema, brand voice, and more.
3
Generate your llms.txt
FoundInAI auto-generates a structured llms.txt based on your site content and brand info. Download and upload to your domain root.
4
Track AI citations
Monitor how ChatGPT, Perplexity, and Claude mention your brand after optimization. See what’s working.
Who Needs llms.txt?
- Shopify and DTC brands that want to appear in AI product recommendations
- B2B SaaS companies that want AI to recommend their tools
- SEO agencies adding GEO services for clients
- Bloggers and content creators who want AI to cite their work
- Any business where AI search discovery drives revenue
Important: llms.txt alone isn’t enough. If AI bots are blocked in your robots.txt, they can’t read your llms.txt either. Always fix your robots.txt first β FoundInAI diagnoses this in your free scan.
Frequently Asked Questions
Does llms.txt guarantee AI will recommend my brand?
No β llms.txt is one signal among many. It helps AI engines understand your brand accurately, which improves the quality and frequency of citations. Combined with robots.txt optimization, Schema markup, and E-E-A-T signals, the effect is significantly stronger.
Where do I upload my llms.txt file?
Place it at your domain root: yourdomain.com/llms.txt. For Shopify, use the Files section in your admin. For WordPress, upload via cPanel or FTP. FoundInAI provides platform-specific guides for every major CMS.
How often should I update my llms.txt?
At minimum, update it when your products, pricing, or brand positioning changes. AI models periodically re-crawl sites, so keeping it current matters. FoundInAI Starter plan and above auto-refreshes your llms.txt monthly.
Is llms.txt an official standard?
It’s an emerging open standard, similar to how robots.txt started. Yoast and Webflow have already added llms.txt support. Adoption is growing rapidly as AI search becomes mainstream.
Generate Your llms.txt with FoundInAI
FoundInAI crawls your site, scores your AI visibility, and auto-generates a structured llms.txt β plus robots.txt fix code, Schema markup, Brand Voice file, and Citation Tracker. Start free, no credit card required.
Generate My llms.txt Free β
No credit card required Β· Results in 60 seconds Β· Works with any platform
