When a website carries the A in its footer, it means the site has been through Outfielder's standard check of best practices: independently audited, the issues found were fixed, and the fixes were re-tested. This site is where those confirmation records live, one page per rated site, with the dates, the scope, and the standards it was checked against.
The A is Outfielder's grade, awarded by an independent third party, never by the company that built the site. It is a record of work done and verified on stated dates.
It is not a WCAG conformance level, and it is not a guarantee that no barrier exists. A rating stays current only while the site remains under watch; a lapsed rating reads as lapsed, in public.
Every confirmation page carries a report door, and reports are answered by the team that keeps the rating current. Write to support@outfielder.io.
Or read the first real one: Record #1, Outfielder's own site. We run it on ourselves first.