Adding llms.txt to a Shopify store
Published:
As of 2026, Shopify generates an llms.txt for every store automatically — part of its Agentic Commerce push. Your job is mostly to find it, point it at the right pages, and trim the noise.
1. Check what Shopify already serves
Open https://yourstore.com/llms.txt. Most stores already return a file. The catch: the default often steers agents toward Shopify's Shop app rather than your own store and docs — so you'll usually want to customize it.
2. Customize via a theme template (recommended)
In Online Store → Themes → ⋯ → Edit code, open the Templates folder and add a new template named llms.txt.liquid. Shopify serves this at /llms.txt, so its content replaces the default. Write a short, curated file:
# Acme Store > Acme sells handmade goods. This file points AI shopping agents at the pages that matter. ## Catalog - [Best sellers](https://acme.com/collections/best-sellers): Top products - [New arrivals](https://acme.com/collections/new): Latest additions ## Help - [Shipping & returns](https://acme.com/policies/shipping-policy): Policies - [Contact](https://acme.com/pages/contact): Support
3. Or use an app
The Shopify App Store has several llms.txt apps that auto-generate the file from your products, collections and pages, and refresh it when the catalog changes. Handy if you don't want to touch theme code — but review the output (see the next step).
4. Keep it lean
The most common mistake is dumping every product and blog post in. A 60-line curated file beats a 5,000-line one: agents have limited context, and clutter buries your best pages. List collections and key policies, not the entire catalog.
5. Validate
Paste your domain into the validator to confirm the file is reachable, well-formed, and every link resolves. Re-check after big catalog changes.