Check
Dated and attributable
Dated and attributable is check C4 in the fifteen-point audit. The reader can see when the page was last updated and who stands behind it.
What counts as evidence
The visible date and author or organisation we found on the page.
How to fix it
Show a human-readable update date and the organisation responsible; keep it in the structured data too.
Where this sits
C 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.