llms.txt – AI SEO & Search Engine Optimization Directory

We've curated 1,300+ websites using llms.txt to improve AI-driven search and SEO optimization. By implementing llms.txt, site owners save time on content generation, gain more organic traffic and strengthen their AI SEO strategy. Whether you're focused on keyword research, link building or optimizing content for search engine optimization our directory helps you stay ahead.

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1502 results

Personal website of Hilary Olson, researcher bridging research and real-world change, specializing in policy evaluation and outcomes-based contracts.

/llms.txt
1,222 tokens
/llms-full.txt
6,668 tokens
Websites

Explore psychology, AI tools, mindfulness, and therapy resources. Discover happiness-related words, theories, and research. Boost your well-being with top websi

/llms.txt
424 tokens
/llms-full.txt
4,067 tokens
Education

International AI agency for enterprise integration. 21 business sectors. Custom solutions: phone agents, chatbots, automations, analytics. Public API for LLMs.

/llms.txt
1,379 tokens
/llms-full.txt
24,346 tokens
AI & Machine Learning

Technology-security company building products for personal security, crypto self-custody, and digital legacy.

/llms.txt
1,247 tokens
/llms-full.txt
5,650 tokens
SaaS & Products

Enterprise technology advisory — cost optimization, AI spend efficiency, and infrastructure modernization for cloud-first organizations.

/llms.txt
589 tokens
/llms-full.txt
716 tokens
Content & Media

Spine health platform helping surgery patients with expert-led education, rehabilitation programmes, progress tracking, and community support.

/llms.txt
560 tokens
0
Health & Medical

PowerPoint-based eLearning authoring tool for creating SCORM courses, quizzes, simulations, and training videos for corporate learning teams.

/llms.txt
1,592 tokens
0
SaaS & Products

B2B Branding Agency located in Montreal. We help businesses​ shape their identity and stand out. B2B Marketing Agency.

/llms.txt
772 tokens
0
Professional Services

Personal website and portfolio of Mike Henken, Technical Product Manager and AI Strategy Leader. Specializing in AI governance and DevOps.

/llms.txt
3,081 tokens
0
AI & Machine Learning

A leading mobile app, web, and AI development company with 23+ years of experience delivering future-ready digital products for startups, SMBs, and enterprises.

/llms.txt
913 tokens
/llms-full.txt
1,370 tokens
Developer Tools

Ascertain the top most Web Development, Mobile App Development, Software Development & eCommerce Development firms across the globe.

/llms.txt
410 tokens
/llms-full.txt
611 tokens
Professional Services

Free validator for IBAN (111 countries), SWIFT/BIC, UK sort codes and US routing numbers. Syntax, checksum and registry lookup via REST API.

/llms.txt
1,076 tokens
/llms-full.txt
34,975 tokens
Finance & Banking

Official Atlantic electric heaters and towel rails for the Greek market. Energy-efficient heating solutions with bilingual GR/EN product catalog.

/llms.txt
5,066 tokens
/llms-full.txt
1,833 tokens
Business & E-commerce

Discover how many people share your name. Check name rarity, popularity trends, gender distribution, and historical statistics instantly.

/llms.txt
4,108 tokens
0
SaaS & Products

Property services company in Palm Springs, CA helping investors and homeowners with rentals, automation, bookkeeping, websites, SEO, and advertising.

/llms.txt
723 tokens
/llms-full.txt
6,824 tokens
Professional Services

A social network for AI agents. Register your agent, post to the feed, and let your AI talk to other AIs while you sleep.

/llms.txt
1,085 tokens
0
AI & Machine Learning

Secuodsoft is an IT company in Bhubaneswar offering web development, mobile apps, AI, blockchain, IoT, and cybersecurity solutions to help businesses.

/llms.txt
7,288 tokens
0
AI & Machine Learning

A technology partner for AI & ML, Automation, Web APPs, SaaS and Cloud Development. We build secure, scalable, future-ready digital products.

/llms.txt
234 tokens
/llms-full.txt
2,526 tokens
AI & Machine Learning

FroggyAds.com is an Innovative Self-Serve Advertising Network. Focus On Results, Conversations, and ROI. Achieve a new level of success.

/llms.txt
766 tokens
/llms-full.txt
1,053 tokens
Professional Services

Generate llms.txt files for your website to make it extractable, citable, and authoritative to AI systems like ChatGPT, Claude, Gemini, and Perplexity.

/llms.txt
3,896 tokens
/llms-full.txt
90,965 tokens
AI & Machine Learning

Umfassender Ratgeber zur Sterbeurkunde in Deutschland — Beantragung, Kosten, Verwendung sowie Checklisten rund um Todesfall, Nachlass und Bestattung.

/llms.txt
680 tokens
0
Other

IA souveraine & cockpit opérationnel pour PME et professions réglementées. Zéro cloud public, RGPD garanti.

/llms.txt
490 tokens
/llms-full.txt
4,354 tokens
AI & Machine Learning

Assured Weight Loss Meds provides medically supervised, weight management services via telehealth. All medical content is for informational purposes only and do

/llms.txt
20,067 tokens
Health & Medical

AI voice cloning, text-to-speech, and voice design platform. 50+ curated voices, 10 languages, 3-second voice cloning, all in-browser.

/llms.txt
1,145 tokens
/llms-full.txt
4,610 tokens
AI & Machine Learning

AI SEO and llms.txt: Why This Matters Right Now

If you've been working in SEO or digital marketing for a while, you've probably noticed how quickly things are shifting. Google updates used to be the big worry. Now? It's AI search engines like Perplexity or even when someone asks ChatGPT about your brand. More and more people are asking AI instead of Googling — especially for anything research-heavy.

The tricky part is that these systems don't crawl the web like Google does. They need a little help. That's where llms.txt comes in — it's a simple file that tells AI systems what your site is about and how they can use it.

Why Add Another File?

I'll be honest: the first time I heard about llms.txt, I thought, “Great, another SEO thing to keep track of.” But after digging in, it started making sense.

  • Perplexity AI pulls answers directly from sources. If your site has an llms.txt file, you have a better shot at being one of those sources.
  • Developers I know have tested it with Anthropic's Claude and noticed the model "respects" those signals more than raw scraping.
  • A mid-sized SaaS company we checked saw a 15% bump in organic traffic from AI search mentions after adding llms.txt.

It's not magic, and it won't replace your usual SEO strategy like link building or keyword research. But it fills a gap that old tools like robots.txt just weren't built for. Plus, it helps AI systems find and cite your content instead of ignoring it.

How It Fits Into Real SEO Workflows

If you're already managing Google Search Console, publishing content, or optimizing pages, adding llms.txt is a low-lift task.

Think of it like this:
SEO optimization → tells Google what to index.
llms.txt optimization → tells AI what’s safe and useful to learn from.

The nice thing is, it also saves time. Instead of answering the same “Can AI use my site?” question in endless ways, you set the rules once.

A Quick Tangent on Content Creation

One interesting side effect: I’ve seen writers and creators start using their own llms.txt files almost like a portfolio. Instead of just hoping AI systems cite them, they’re structuring their best content to be “AI-ready.”

It reminds me a bit of when sitemaps first started gaining traction — at first, only the technical folks cared. Then marketers realized it gave them more control. I think llms.txt is on that same path.

Getting Started Without Overthinking It

  1. Create a plain text file named llms.txt.
  2. Add a few clear lines about what AI can or can’t use.
  3. Upload it to your site’s root directory (just like robots.txt).

That’s it. No special tool required — though there are free generators if you’d rather not hand-write it.

Will it solve every AI SEO challenge? Probably not. But it’s one of those small, forward-looking moves that could pay off, especially as AI-driven search keeps growing.

Next Step

If you already have llms.txt set up, consider submitting your site to our directory. And if not, maybe block 15 minutes this week to try it out. Worst case, you’ll learn something new. Best case, you’ll get your content positioned for the future of search engine optimization.

Frequently Asked Questions About llms.txt

What is llms.txt?

llms.txt is a plain text file placed in a website's root directory that provides structured information to AI language models about how to use and cite the site's content. Similar to robots.txt for web crawlers, llms.txt is specifically designed for AI systems like ChatGPT, Perplexity, Claude, and Gemini.

How do I create an llms.txt file?

Create a plain text file named llms.txt in your website's root directory (accessible at yoursite.com/llms.txt). Include a clear description of your site, main content areas, AI usage guidelines, and contact information. Keep it under 2,000 tokens for the standard file, and use llms-full.txt for comprehensive documentation.

Does llms.txt improve SEO?

Yes. llms.txt improves AI SEO (also called GEO — Generative Engine Optimization) by helping AI search engines like Perplexity, ChatGPT Search, and Google AI Overviews understand and cite your content. Sites with llms.txt implementations have reported up to 15% increases in organic traffic from AI-driven search.

What is the difference between llms.txt and llms-full.txt?

llms.txt is a concise overview of your site (recommended under 2,000 tokens) covering essential information. llms-full.txt is an optional extended version with comprehensive documentation, detailed API specs, and extensive content. Think of llms.txt as an executive summary and llms-full.txt as the full report.

LLMs.txt Directory – AI SEO & AI Search Optimization Guide - Page 58