Will AI engines citepubmed.ncbi.nlm.nih.gov?

What we checked

• HTTPS10 pts

  TLS responds correctly. AI crawlers won't be blocked at the network layer.

• robots.txt + AI bots15 pts

  robots.txt exists but doesn't mention any AI engine bots. Default behavior is allow, so you're crawlable — but you've left a high-leverage signal off the table.

• llms.txt10 pts

  No /llms.txt published. The llmstxt.org spec is the explicit channel for telling AI engines what to index. Missing this is the cheapest fix on this page.

• sitemap.xml10 pts

  No /sitemap.xml at the standard location. AI engines fall back to link-following, which under-discovers deep pages.

• Open Graph image10 pts

  og:image is set. Social and AI-engine link previews will render with a branded card.

• JSON-LD schema20 pts

  No JSON-LD on the homepage. Without schema, AI engines fall back to plain text parsing — far less reliable for facts, prices, ratings, and entity matching.

• <title> length5 pts

  Title is only 6 chars — under 30 wastes the prime citation real estate.

• meta description5 pts

  Meta description 223 chars — over 160 truncates mid-thought in AI Overviews.

Quick grade checks 8 signals at the homepage level. The full VectorCite audit scores 47 signals per page and runs against real buyer queries you specify.