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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1432 results

Rankr.ai — AI Search Optimization Platform

AI Search Optimization platform that helps businesses get mentioned in AI answers from ChatGPT, Claude, Gemini, Grok, and Perplexity.

/llms.txt

1,042 tokens

AI & Technology

Happy Endpoint - Pro Data APIs

Happy Endpoint helps developers skip web scraping maintenance hell 🛠️ so they can build products 🚀 instead of battling proxies, CAPTCHAs 🤖, and site changes.

/llms.txt

4,020 tokens

/llms-full.txt

4,020 tokens

Business & E-commerce

Hilary Olson

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

Personal Website

Kuakua - Psychology & AI Tools for Well-Being

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 & Learning

Kaitos Agency

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 & Technology

Alcazar Security

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 Product

Cloud Latitude

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

Vertera

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

/llms.txt

560 tokens

Health & Lifestyle

iSpring Suite: eLearning Authoring Tool

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

/llms.txt

1,592 tokens

SaaS Product

eau³ // Branding + Marketing

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

/llms.txt

772 tokens

Professional Services

Mike Henken - Professional Portfolio & AI Leadership

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

AI & Technology

Top AI-Driven Mobile App Development Company

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

Development & Tools

Top ITFirms Based on In-depth Research & Analysis

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

BankValidOR — IBAN, SWIFT & Bank Code Validator

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

Atlantic Heating Greece

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

Retail & Consumer Goods

How Many of Me Are There? Name Popularity Checker

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

/llms.txt

4,108 tokens

SaaS Product

Sandvue

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

HumanAway

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

AI & Technology

Secuodsoft

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

AI & Technology

AppStoneLab Technologies

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 & Technology

Buy High Quality Traffic. Get Real Clicks For All Niches And GEOs.

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

LLMGenerator - Generate llms.txt Files for AI Visibility

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 & Technology

Sterbeurkunde

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

/llms.txt

680 tokens

Other

S.A.F.E. Pilotage Privé

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 & Technology

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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. The search volume for AI-related queries has exploded, and your target audience is increasingly turning to these platforms for high quality information.

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, but it can guide AI systems on how to use your content. This creates an AI overview of your site that helps these systems understand your content better.

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 your content reach your target audience through social media sharing and AI-powered discovery.

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

Create a plain text file named llms.txt.
Add a few clear lines about what AI can or can’t use.
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 AI systems read llms.txt?

Major AI systems that can benefit from llms.txt include OpenAI's ChatGPT and GPTBot, Anthropic's Claude and ClaudeBot, Google's Gemini and Google-Extended crawler, Perplexity AI and PerplexityBot, Microsoft Copilot, and Cohere AI. The standard is gaining adoption across the AI ecosystem.

Is llms.txt the same as robots.txt?

No. robots.txt tells search engine crawlers which pages to index or avoid. llms.txt is specifically designed for AI language models — it provides context about your site's content, purpose, and how AI should use your information. They serve complementary purposes: robots.txt controls crawling, llms.txt guides AI understanding.

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.

How does llms.txt improve AI search visibility?

llms.txt helps AI search engines understand your content's structure, authority, and purpose. When AI systems like Perplexity or ChatGPT Search need to cite sources, sites with clear llms.txt implementations are easier to parse, quote, and recommend — leading to more AI-driven referral traffic.

How do I get my website listed in the llms.txt directory?

Submit your website for free at llmtxt.app/submit. Requirements: your site must have a publicly accessible /llms.txt file with meaningful content, be active and accessible, and follow our content guidelines. We verify submissions within 24-48 hours and add approved sites to the directory.

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