How to › Squarespace
llms.txt on Squarespace: the honest answer is you cannot
We would rather tell you this than sell you a workaround that does not hold. On the vendor’s own documentation there is no route to a real file at this path, and the near-misses all fail for reasons Squarespace states itself.
Can this platform serve the file at the exact path?
No documented route — not by upload, not by page, not by redirect.
Three separate constraints, each from Squarespace’s own help centre: URL slugs (slugs allow no special characters other than dashes), robots.txt (all sites share one file that users cannot access or edit), and image and file URLs (static assets live on their content-delivery providers and their URLs cannot be customised or redirected).
the steps
What we checked, and what each one does
- A page with the slug
llms.txt. Not possible. Squarespace documents that slugs cannot include special characters other than dashes, so the period has nowhere to go. - Uploading the file and pointing at it. Uploaded files are served from their content-delivery domain under an
/s/path, and Squarespace documents that it is not possible to customise or redirect a static asset URL. - A URL mapping from
/llms.txt. Squarespace’s Developer tools › URL mappings does support redirects, written as/old -> /new 301, but the same documentation says image and file URLs cannot be redirected and that a redirect only works where the source page has been deleted or disabled. And a redirect would not earn a pass regardless: the agent-readiness audit treats a redirect at this path as an error, not as the file. - Editing robots.txt to point at something. Not available. Squarespace states that every site uses the same robots.txt and that users cannot access or edit it. The one documented control in this area is the opposite lever — a setting that asks known AI crawlers to stay out entirely.
what breaks it
The ways this goes wrong on Squarespace
- Anything you read that involves uploading a
.txtfile and redirecting to it. Squarespace does not document.txtas an accepted upload type in the CSS-editor file uploader, and the redirect half is ruled out by their own file-URL documentation. - Code injection. It writes into the head and the end of the body of HTML pages. It cannot create a URL and cannot serve anything that is not HTML.
what to do instead
The three honest options
Put the answers in the page, which is the surface that was measured anyway
The fact block is HTML. It goes in the page, it works on any platform that lets you add a block of markup, and it is the only surface in the package with a controlled result behind it: 78% of fact checks recovered against 30% in the control, with agents stopping after 1.1 pages on average (Note 41). Losing the fact file on this platform costs you an audit line. Not answering the buyer’s question costs you the buyer.
If the file genuinely matters to you, that one path has to move
Serving /llms.txt means something in front of your domain that can serve a file. That is a hosting change, not a settings change, and we will tell you honestly whether it is worth it for your site rather than quoting you for it by default.
Do not let anyone sell you the redirect
It fails twice over: Squarespace documents that file URLs cannot be redirected, and the agent-readiness audit errors on a redirect at this path rather than following it. A redirect is not a pass.
Source: MARKETING_NOTES_AGENT_VISIBILITY.md, Note 41.
verify it
There is nothing to verify here, and that is the finding
On every other platform this section tells you to fetch https://yourdomain/llms.txt and confirm you get raw text. Here, that request is expected to fail, and no setting in the product changes it. Anyone who tells you otherwise should be asked which vendor page they are reading.
What you can still check is the thing that matters more: what a model recovers from your homepage. That is what the free audit measures, on any platform.
the honest part
This file is the compliance surface, not the mechanism
Publishing it is worth doing and takes ten minutes. What it will not do on its own is get you found: in a controlled test, agents given no pointer to the file opened it 0 times in 18 visits (Note 15), and in a census of nine real sites, seven published one and not one of them placed it where it gets read (Note 09).
What moved the numbers was putting the answers in the homepage itself, where a one-page reader lands: 78% of fact checks recovered against 30% in the control, with agents stopping after 1.1 pages on average (Note 41). Do this file because Google’s page-quality tooling checks for it and the package passes the llms.txt and page-structure checks of Google’s agent-readiness audit; the WebMCP audits cover interactive tools a fact package deliberately does not install. Do the fact block because it works.
Sources: MARKETING_NOTES_AGENT_VISIBILITY.md, Notes 09, 15, 41.
If somebody has told you this file moves your search position, read does llms.txt help SEO first — the answer is documented, and it is not the one they gave you.
other platforms
The same job elsewhere
free audit
See what AI sees on your site
The file is ten minutes of work. Whether your homepage answers a buyer's question is a different question, and it is the one we measure.
One model fetches your homepage and answers buyer questions from it. You get the recovery score and the specific answers it could not find. That is the whole free tier: it shows you the problem, and the fix package is not included.