notafter watches the SSO certificates nobody remembers

Field notes

The page separates a no-sign-up metadata check from a planned monitoring product. Its sample workspace contains 24 connections across five identity providers, with 22 marked healthy and two needing attention; the example also shows a certificate with 23 days remaining. The proposed alert model uses four thresholds—90, 30, 7, and 1 day—and aims to show certificate, key, and endpoint changes as readable diffs rather than raw XML.