2 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
The vary response header of a URL: whether it is present, its value, and a one-line reading of what the value means (or the risk of its absence for security headers). One header, one answer, for audits and monitoring scr...
Change watch for response header vary: runs the check, compares it with the result from your previous call for the same url (kept 90 days) and returns the current answer, changed true/false, the fields that changed with...