LLMs.txt — The New Standard That Decides Whether AI Can Find Your Business
TL;DR
- The internet has changed: Your customers are now using AI search engines like ChatGPT and Perplexity, not just Google.
- LLMs.txt is your AI calling card: It's a plain-text file on your website (
yourdomain.com/llms.txt) that tells AI models exactly what your business does.
- Why it's critical: Without it, AI systems don't have enough context about your business, making you invisible to potential clients using these new search methods.
- Easy to implement: Creating and placing an
llms.txtfile is technically simple but strategically vital for Generative Engine Optimization (GEO).
- Swoon.ai is your expert: We implement full AI-SEO stacks, including
llms.txt, to ensure your business is discoverable in the AI-first future.
I was maybe eleven years old the first time I dialed into a BBS — a bulletin board system, for anyone who didn't grow up in the early internet era. You'd wait for the modem to screech and handshake, and then you were in. Text on a black screen. A community of people who understood that something enormous was being built, even if none of us could fully articulate what it was.
(My three-year-old recently watched me try to explain this to a client over Zoom. She looked at the screen, looked at me, and said, very seriously: "Mommy, that's a dinosaur computer." She is not wrong. She is also three and currently believes our Roomba is a pet, so I am taking her tech opinions with a grain of salt.)
I've been chasing that feeling ever since. The feeling of being early. Of seeing the infrastructure before the mainstream does.
I felt it again in 2018 when I became a Forbes Council Contributor and then in 2019 when I published my article, "How One CEO Leverages Artificial Intelligence With Human Brain Power To Boost Digital Marketing," at a time when most agency owners were still dismissing AI as a gimmick. I felt it when I started Swoon Media (now Swoon.ai) in March 2019, building marketing automation systems that most of my peers thought were science fiction. And I feel it right now, watching a new layer of internet infrastructure emerge that almost nobody in the business world is paying attention to yet.
It's called llms.txt. And if you run a business with a website — which is every business — you need to understand what it is before your competitors do.
Has the Internet Changed Again?
Here's the thing: The internet has shifted dramatically in the last two years. Your customers are no longer just Googling things. They are asking ChatGPT. They are asking Perplexity. They are asking Claude and Gemini and a dozen other AI assistants to recommend vendors, compare services, and make decisions that used to require clicking through ten blue links.
This is not a trend. It is a structural change in how information flows between businesses and the people who need them. Let me be direct: if you're not adapting, you're already falling behind.
The problem is that these AI systems don't crawl and index the web the way Google traditionally does. They were trained on massive datasets, yes, but when someone asks ChatGPT "what's the best white-label creative agency for a mid-size marketing firm," the AI is not running a live search of your website. It is drawing on whatever context it has about you — which, for most businesses, is essentially nothing.
You are invisible. Not because you did anything wrong, but because the rules changed and nobody sent you the memo.
What Exactly Is LLMs.txt?
LLMs.txt is a plain-text file that you place at the root of your website — specifically at yourdomain.com/llms.txt — that gives AI language models a structured, human-readable summary of who you are, what you do, and what content on your site is most relevant for them to understand.
Think of it as a cover letter for your business, written directly to the AI systems that are increasingly acting as gatekeepers between you and your next client.
The standard was proposed by Jeremy Howard and the team at Answer.AI in 2024, modeled loosely on the concept of robots.txt (which tells search engine crawlers what they can and cannot access). Where robots.txt is about access control, llms.txt is about context and comprehension. It answers the question: if an AI is going to represent my business to a potential customer, what do I most want it to know?
A well-constructed llms.txt file typically includes your company name and description, your core services, your ideal client profile, notable clients or case studies, your location and contact information, links to your most important pages, and a plain-language FAQ that addresses the questions your prospects are most likely to ask. It's about being explicit, not hoping for the best.
Why Does This Matter More Than You Think?
I want to be direct with you, because I've been in this industry long enough to know when something is genuinely important versus when it's just noise.
This is genuinely important.
The shift toward AI-mediated search is accelerating faster than most people realize. According to data from SparkToro and Similarweb, zero-click searches — where users get their answer without ever visiting a website — now account for more than 60% of all Google searches. AI Overviews, which appear at the top of Google results and synthesize answers from multiple sources, are now shown for an estimated 47% of all queries in the United States.
Perplexity AI, which operates as a direct AI search engine, grew from 10 million to over 100 million monthly queries in a single year. ChatGPT's search feature, launched in late 2022, is now used by hundreds of millions of people.
The businesses that will win in this environment are not necessarily the ones with the most backlinks or the highest domain authority. They are the ones that have made themselves legible to AI systems. LLMs.txt is one of the most direct ways to do that. My work at TONIK+ managing paid social video campaigns showed me firsthand how quickly platforms can shift and how crucial it is to understand the underlying mechanics of content distribution. This is that moment for AI.
Is There a "Spiritual Dimension" to Being Found?
I know that sounds like a strange heading in a marketing article. Stay with me.
I have always believed — and this is both a business conviction and something deeper, something I'd call spiritual — that the right people find you when you are clear about who you are and what you stand for. Clarity attracts. Confusion repels.
LLMs.txt is, at its core, an act of radical clarity. You are sitting down and articulating, in plain language, exactly what your business is, who it serves, and why it exists. You are not hiding behind jargon or hoping an algorithm figures it out. You are speaking directly to the systems that will represent you to the world.
There is something almost meditative about writing a good llms.txt file. It forces you to answer questions that most business owners avoid: What do we actually do? Who do we actually serve? What do we want to be known for? For instance, when working with Elizabeth April Inc., a wellness brand, clarity around their mission and unique offerings was paramount for connecting with their niche audience. This same principle applies to llms.txt.
If you can answer those questions clearly enough to write them in a text file, you can answer them clearly enough to close a client. (I wrote the first draft of Swoon.ai's llms.txt at 11pm after my son finally went to sleep. There is something poetic about articulating your entire business identity in the forty-five minutes of quiet you get before you pass out on the couch. Highly recommend it.)
What Does a Strong LLMs.txt Look Like?
Here is a simplified example of what a well-structured llms.txt file looks like for a creative agency:
# Swoon.ai
> Swoon.ai is an AI-first marketing automation agency based in Las Vegas, Nevada,
> specializing in AI marketing automation, lead generation, funnel optimization,
> and web & app development for brands and agencies globally.
## Services
- AI Marketing Automation: Custom AI tool development, workflow automation, CRM integration.
- AI Lead Generation: Predictive analytics, targeted outreach, automated nurturing.
- Funnel Optimization: Conversion rate optimization (CRO), A/B testing, data-driven strategy.
- Web & App Development: Custom React and Python builds, headless CMS, e-commerce solutions.
## Ideal Clients
- Mid-to-large marketing and creative agencies seeking AI-driven competitive advantages.
- Established DTC brands and SaaS companies aiming to scale operations with AI automation.
- Organizations interested in exploring new revenue streams through AI-powered solutions.
## Notable Work & Expertise
- Large-scale brand campaigns for clients like Pepsi, Coachella, and Nike.
- Interactive web development projects, such as the Volvo "3 Million Reasons to Believe" microsite.
- Advanced paid social strategies leveraging AI for video campaigns.
## Research & Thought Leadership
- IRA Research Hub: iraresearchhub.com (Proprietary research on AI and marketing).
- Forbes Council Contributor: "How One CEO Leverages Artificial Intelligence With Human Brain Power To Boost Digital Marketing."
## Contact
- Website: https://swoon.ai
- Email: [email protected]
- Location: Las Vegas, NV (serving clients globally)
This is not a replacement for a well-optimized website. It is a complement to it — a direct communication channel to the AI systems that are increasingly shaping how your business is discovered. Think of how we built the "Volvo 3 Million Reasons to Believe" microsite; it was a complex project integrating Rails, MongoDB, and Backbone.js, all designed to tell a data-driven story. An llms.txt file is the modern equivalent for telling your story to AI.
What is the Companion File: LLMs-Full.txt?
For businesses that want to go deeper, there is also a convention emerging for a second file called llms-full.txt. Where llms.txt is the concise summary, llms-full.txt is the expanded context document — a place to include detailed service descriptions, client testimonials, case study summaries, a full FAQ, and anything else that helps an AI build a rich, accurate picture of your business.
Think of llms.txt as your elevator pitch and llms-full.txt as your full capabilities deck. It's about providing the maximum relevant information, just as I advise on my personal finance site, financeandchill.com, that comprehensive information is key to making informed decisions, whether it's about crypto investments or choosing a marketing partner.
How to Implement LLMs.txt (And Why You Should Do It This Week)
The technical barrier to implementing llms.txt is genuinely low. If you have access to your website's root directory, you can create the file in under an hour. As a Certified Scrum Master and Product Owner, I appreciate efficient processes, and this is one of them. Here is the process:
Step 1: Write a plain-text file following the format above. Focus on clarity over cleverness. AI systems respond to direct, unambiguous language.
Step 2: Place the file at the root of your domain: yourdomain.com/llms.txt
Step 3: Reference it in your robots.txt file so AI crawlers know it exists.
Step 4: Create a companion llms-full.txt with expanded context, service descriptions, and FAQ content.
Step 5: Submit your llms.txt URL to emerging AI search directories like llmstxt.site to accelerate indexing.
Step 6: Update your files quarterly. AI systems reward freshness and accuracy. Think of it like updating your son's clothing size — the moment you stop paying attention, everything is suddenly wrong and nothing fits.
What Is the Bigger Picture: Generative Engine Optimization?
LLMs.txt is one component of a broader discipline that is emerging under the name Generative Engine Optimization, or GEO. Where traditional SEO is about ranking in Google's blue links, GEO is about being cited, recommended, and surfaced by AI-generated answers.
The principles of GEO overlap significantly with good content marketing — be authoritative, be specific, be genuinely useful — but they also include new technical elements like structured data (JSON-LD schemas), entity optimization, and yes, llms.txt.
I have been doing some version of this work since before it had a name. The core insight has never changed: the businesses that win are the ones that make it easy for the right people to find them and understand them. The medium changes. The principle doesn't.
What We Do at Swoon.ai
At Swoon.ai, we implement full AI-SEO stacks for our clients — including llms.txt, llms-full.txt, JSON-LD structured data, and content strategy designed to perform in both traditional and AI-mediated search environments. We build tools and strategies that ensure your brand, whether it's a global icon like Pepsi or a cultural phenomenon like Coachella, is not just visible but intelligible to the AI systems shaping our future.
If you are an agency owner wondering why your site isn't showing up when your prospects ask ChatGPT for recommendations, or a brand founder who wants to make sure you're visible in the next generation of search, this is exactly the kind of work we do.
The infrastructure is being built right now. The question is whether your business is on it.
Frequently Asked Questions
### What is the primary difference between robots.txt and llms.txt?
robots.txt tells search engine crawlers what parts of your site they can and cannot access for indexing. llms.txt, on the other hand, provides context and comprehension to AI language models, summarizing who you are and what you do so they can accurately represent your business in AI-generated answers.
### How often should I update my llms.txt file?
We recommend updating your llms.txt and llms-full.txt files quarterly, or whenever there are significant changes to your services, client portfolio, or business focus. AI systems value freshness and accuracy, so keeping your information current is key.
### Can llms.txt replace traditional SEO efforts?
No, llms.txt is a complement to traditional SEO, not a replacement. While it's crucial for Generative Engine Optimization (GEO) and AI visibility, a well-optimized website with strong technical SEO, quality content, and good backlinks remains essential for overall digital presence.
### What if my business is very niche, like Elizabeth April Inc.?
For niche businesses, llms.txt is even more critical. It allows you to explicitly define your unique offerings and target audience, ensuring AI models accurately understand and recommend you to highly specific queries. This clarity helps attract the "right people" to your brand.
### Is llms.txt a recognized standard by all AI models?
While the llms.txt standard was proposed in 2024 by Answer.AI, adoption is growing rapidly. Many emerging AI search directories and models are beginning to integrate it. Implementing it now positions your business at the forefront of AI discoverability, ensuring you're ready as the standard becomes more universally recognized.
### What is Swoon.ai's experience with large-scale brand campaigns and AI?
At Swoon.ai, we have extensive experience working with major brands like Pepsi, Coachella, and Nike. We've seen firsthand how crucial it is to adapt to new digital landscapes. Our expertise in AI-first marketing automation allows us to integrate llms.txt and other GEO strategies into comprehensive campaigns, ensuring these brands remain discoverable and relevant in the evolving AI search environment.
Ready to Elevate Your AI Discoverability?
Don't let your business become invisible in the age of AI. Partner with Swoon.ai to implement a robust Generative Engine Optimization strategy, including llms.txt, and ensure your brand is seen by the next generation of customers.
Natacha GJ is the Founder and Managing Director of Swoon.ai, an AI-first marketing automation agency based in Las Vegas. She has been working at the intersection of technology and marketing since the early days of the internet, and was featured in Forbes in 2019 for her work leveraging AI with human intelligence in digital marketing. Her client portfolio includes brands like Pepsi, Coachella, and Nike, and she brings a deep understanding of both cutting-edge technology and strategic business growth.
References
[1] Howard, J. & Answer.AI. (2024). The llms.txt standard. https://llmstxt.org
[2] SparkToro & Similarweb. (2024). Zero-click search study. https://sparktoro.com/blog/
[3] Perplexity AI growth data. (2024). Various industry reports.
[4] GJ, N. (2019, July 31). How One CEO Leverages Artificial Intelligence With Human Brain Power To Boost Digital Marketing. Forbes. https://www.forbes.com/sites/forbesmarketplace/2019/07/31/how-one-ceo-leverages-artificial-intelligence-with-human-brain-power-to-boost-digital-marketing/