Schema Built for the Right CMS — and a Broken URL Caught on the Way
Tasked with generating an FAQ block and JSON-LD structured data for a service page so it gets picked up by AI Overviews, AOS detected the underlying CMS, flagged a 404 on the target URL, and emitted valid schema for the correct content type.
01 Ground
A marketing agency wanted its main service page to start showing up in AI-generated answers, where buyers increasingly begin their search. The practical lever for that is structured data: a well-formed FAQ block plus JSON-LD that tells search and answer engines exactly what the page is and what questions it answers. Done right, it makes a page far easier to cite.
But structured data is unforgiving. Emit the wrong schema type, or markup that doesn't match how the host CMS actually renders pages, and the effort is wasted — the engine ignores invalid or mismatched schema. An agency generating this at scale across clients on different platforms needs the markup tailored to each CMS, not a one-size template pasted everywhere.
There was also a hidden trap: nobody had confirmed the target URL was even healthy. Generating beautiful schema for a page that returns a 404 produces a deliverable that looks complete and accomplishes nothing — the kind of silent failure that erodes trust in automation.
- Detected the host CMS as HubSpot and tailored the structured-data output to it Firecrawl 80% confident
- Flagged a 404 on the target services URL before treating the page as live Firecrawl 85% confident
- Emitted valid JSON-LD for the correct content type, suitable for AI Overview pickup Firecrawl 80% confident
02 Decide
AOS refused to generate markup blind. It first inspected the live page, identified the underlying CMS as HubSpot, and used that to shape the output — because correct schema isn't just syntactically valid, it has to match how the platform actually serves the page.
When it found the target services URL returning a 404, it surfaced that as a blocker rather than papering over it. A 404 means there is no live page to mark up, so the responsible move is to flag it for fixing first — not to ship schema that points at nothing.
Having established CMS and content type, it then emitted valid JSON-LD for the right content type, structured so an AI answer engine can parse the FAQ and cite it. The sequence — verify the page, detect the platform, then generate matching schema — is what separates usable structured data from markup that quietly fails validation.
03 Deploy
An FAQ block plus JSON-LD structured data emitted for the correct content type and tailored to the detected HubSpot CMS.
A flagged 404 on the target services URL, surfaced as a fix-first blocker rather than buried under a generated deliverable.
A CMS-aware generation path that picks the right schema type for the platform instead of pasting a generic template.