The DNS name still answers and something owns it; what is behind it will not complete a TCP or TLS handshake. This is the failure that looks healthiest from a distance - the domain resolves, the certificate may even be listed - and stops every call.
223 records across 146 subjects, observed 2026-09-10. Every one carries a check you can run in a single request.
All subjects ยท the whole registry, machine-readable
This is not a list of good APIs or bad ones. It is a list of observations, each dated and each disprovable in one request. Absence from it means an operation was not examined, not that it is fine.