Guide
How to add an llms.txt to HubSpot CMS (2026 guide)
Updated · July 10, 2026 — Joffrey
What is GEO?→HubSpot doesn't serve an llms.txt file by default. Here's how to add one — plus Q&A schema.org markup — so AI answer engines can read your HubSpot site and cite it in their answers. The steps are concrete and take a few minutes.
Why add an llms.txt on HubSpot?
AI answer engines (ChatGPT, Perplexity, Gemini, Claude) cite only a handful of sources per question, and they favor pages they can read cleanly. An llms.txt hands them a clear, structured version of your site; Q&A schema.org markup makes your answers quotable word for word. Without it, even ranking well on Google, your HubSpot site is unlikely to appear in an AI answer — not for lack of quality, but because nothing is machine-readable.
Add the llms.txt and Q&A markup on HubSpot
- Q&A markup: Settings → Content → Pages → “Site header HTML” field → paste it (applies site-wide).
robots.txt: Settings → Content → Pages → select your domain →robots.txteditor → add our lines.llms.txt: HubSpot can't write to the root. Upload the file in Marketing → Files, copy its/hubfs/…URL, then Settings → Content → URL Redirects → add a 301 redirect from/llms.txtto that URL.your-site.com/llms.txtthen resolves to your file.
Verify it's live
Open your-site.com/llms.txt in a browser: you should see the file in plain text. Then test a page in Google's Rich Results Test to confirm the Q&A JSON-LD is detected. Until both checks pass, AI engines see nothing.