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llms.txt on Webflow: upload it in the site settings

Webflow supports this directly: you upload the file in your site’s SEO settings and it is served from the root of your custom domain once you publish. One detail in their documentation will otherwise cost you an afternoon.

Can this platform serve the file at the exact path?

Yes — uploaded through the site’s SEO settings.

Webflow documents the upload and states that the file is available at your custom domain after publishing, and that it is not published to the Webflow staging domain. Sources: Upload an llms.txt file to your site and the product announcement.

before you start

What you need first

the steps

Upload, publish, verify

  1. Build the file. Markdown, level-one heading first, at least one Markdown link.
  2. Upload it in the site’s SEO settings. Webflow’s help centre carries the current screen-by-screen path, and we link to it rather than re-typing it here, because theirs is the page that stays correct when they move a menu.
  3. Publish the site. The file goes out with a publish, like everything else.
  4. Verify on the custom domain, not on staging. This is the gotcha: Webflow documents that the file is not published to the Webflow staging domain. Checking yoursite.webflow.io/llms.txt will show you nothing and mean nothing.

what breaks it

The ways this goes wrong on Webflow

  • Testing on the staging domain. Documented not to work, and it looks exactly like a broken upload.
  • Forgetting to publish. Same failure mode as every other Webflow change.
  • Reaching for a page slug instead. We did not find Webflow documentation on whether a page slug may contain a period, so we are not going to tell you to try it. Use the upload, which is documented.
  • Enterprise automation. If you are on an Enterprise workspace there are API endpoints for reading and updating this file, which is the route to keep it in step with a content system. Source: llms.txt endpoint reference.

verify it

Prove the file is really there

A file that looks published in an admin screen and returns anything other than a plain 200 at the exact path has not been published. Three checks, in order:

  1. Open https://yourdomain/llms.txt in a private window. You want the raw text, not a styled page, and not a redirect to another path.
  2. Confirm the first line is a level-one Markdown heading — # Your Business. Google’s agent-readiness audit fails a file with no H1 heading anywhere in it, and the llms.txt specification puts the H1 first, so first is the safe place for it.
  3. Confirm at least one Markdown link is present, in [label](https://…) form. A file with no links in that form is reported as a failure by the same audit.

Then run it through the validator, which checks the same conditions and tells you which recommendation each one comes from. 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. That is the claim we make about this file, and the only one. It does not improve your search position.

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

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