Glossary
sameAs
Definition
A schema.org property listing the authoritative URLs that describe the same entity: your Zillow profile, LinkedIn, Google Business Profile, brokerage page. It is the main lever for telling machines that all those scattered profiles are one person.
Machines meet you in fragments: a portal profile here, a directory listing there, a website somewhere else. sameAs is the explicit declaration that stitches the fragments into one entity, which is precisely the consolidation a knowledge graph needs before it can recommend you confidently.
It only works if the profiles it points to agree with each other, which is why sameAs markup and presence sync are two halves of the same job.