Check
Valid JSON-LD, connected to the page
Valid JSON-LD, connected to the page is check B2 in the fifteen-point audit. Structured data parses, uses a type that matches the page, and references the site entity.
What counts as evidence
The JSON-LD types we actually parsed, and whether the block is in the raw HTML (not injected by JavaScript).
How to fix it
Add one entity block for the site and one type block per page, connect them with publisher or isPartOf, and keep headline identical to the h1.
Where this sits
B is the group: accessibility, comprehension, or extractability. The groups run in order — a crawler that cannot reach the page never reaches the reading checks — so fix the earliest failing group first. The full definition of all fifteen items is in the standard.