Who vouches for you?
A model checking whether you are real looks for the same profiles a person would. This reads which ones your site publishes — and which ones your markup actually declares.
Why “in schema” is its own column
A LinkedIn link in your footer is evidence a human can follow. The same link inside your Organization sameAs is evidence a machine can follow without guessing. Most sites have the first and not the second, and that gap is the cheapest thing on this page to fix.
This is not a backlink checker: it reads links a site publishes about itself. There is no domain rating, no referring-domain count, and no spam score, because none of that can be observed from the two pages being compared.
What to do with it
Copy the sameAs block into your Organization JSON-LD, then re-run the full scan to see it counted alongside your schema, robots.txt and llms.txt. Claim the missing profiles that are genuinely yours — do not pad the list with ones you do not control.