When someone asks ChatGPT or Perplexity for a product, the answer is built from pages the AI could read. llms.txt is a small text file that gives those engines a clean map of your store.
What is llms.txt?
It’s a plain Markdown file served from your domain. It lists who you are, what you sell, and links to your most useful pages — without the menus, pop-ups and scripts that make a normal page hard for a model to read.
Why it matters for Shopify stores
Shopify themes are built for shoppers, not language models. A short, structured summary makes it easier for AI engines to understand your catalogue and point to the right product page.
What goes inside
Keep it short and factual. A good store file usually has:
# Aayogi Ayurveda > Ayurvedic hair and skin care, made in India. ## Collections - [Hair care](/collections/hair) - [Skin care](/collections/skin) ## Policies - [Shipping](/policies/shipping-policy) - [Returns](/policies/refund-policy)
How to serve it on Shopify
Shopify doesn’t let you drop a file at the root of your domain. The usual route is an app proxy, which serves the file from a path on your store. QueRank generates the file from your catalogue and serves it at /apps/querank/llms.txt.
Don’t forget the crawlers
A file only helps if AI crawlers are allowed to visit. Check your robots settings for bots like GPTBot, ClaudeBot and PerplexityBot, and decide which ones you want to let in.
FAQ
Is llms.txt an official standard?
It’s a community proposal, not a formal standard. It’s cheap to add and easy to update, which is why many sites publish one.
Will llms.txt get me cited by ChatGPT?
No file can guarantee that. It makes your store easier to read — clear product pages and structured data matter just as much.
Does QueRank update the file automatically?
QueRank builds the file from your store and serves it through the app proxy. You can review and regenerate it from the GEO screen.