Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

42 hosts · 257 ms

HostCertsFirst seenLast seenDNS
encord.ai 5 2026-06-06 2026-10-02 ok
active.joseph.encord.ai 1 2026-06-18 2026-06-18 nxdomain
auth.joseph.encord.ai 1 2026-06-18 2026-06-18 nxdomain
api.joseph.encord.ai 2 2026-06-18 2026-06-27 nxdomain
app.joseph.encord.ai 1 2026-06-18 2026-06-18 nxdomain
ws.joseph.encord.ai 1 2026-06-18 2026-06-18 nxdomain
email.encord.ai 10 2026-05-07 2026-09-02 ok
trail.encord.ai 5 2026-05-06 2026-09-02 ok
auth.annotation.encord.ai 5 2026-04-20 2026-10-01 ok
api.annotation.encord.ai 6 2026-04-17 2026-09-29 ok
app.annotation.encord.ai 4 2026-04-15 2026-09-22 ok
ws.annotation.encord.ai 7 2026-04-16 2026-09-23 ok
go.encord.ai 14 2026-05-15 2026-09-19 ok
active.marius.encord.ai 1 2026-07-07 2026-07-07 nxdomain
auth.marius.encord.ai 1 2026-07-07 2026-07-07 nxdomain
api.marius.encord.ai 1 2026-07-07 2026-07-07 nxdomain
app.marius.encord.ai 1 2026-07-07 2026-07-07 nxdomain
ws.marius.encord.ai 1 2026-07-07 2026-07-07 nxdomain
api.perftest.encord.ai 2 2026-05-08 2026-06-30 ok
ws.perftest.encord.ai 1 2026-05-11 2026-05-11 ok
active.azure-storage-index.encord.ai 2 2026-05-25 2026-06-05 ok
auth.azure-storage-index.encord.ai 2 2026-05-25 2026-06-05 ok
api.azure-storage-index.encord.ai 2 2026-05-25 2026-06-05 ok
app.azure-storage-index.encord.ai 2 2026-05-25 2026-06-05 ok
ws.azure-storage-index.encord.ai 2 2026-05-25 2026-06-05 ok
active.mfe.aws-storage-index.encord.ai 2 2025-08-05 2025-08-05 nxdomain
active.aws-storage-index.encord.ai 3 2025-08-05 2026-09-10 ok
auth.aws-storage-index.encord.ai 3 2025-08-05 2026-09-10 ok
api.aws-storage-index.encord.ai 3 2025-08-05 2026-09-10 ok
app.aws-storage-index.encord.ai 3 2025-08-05 2026-09-10 ok
ws.aws-storage-index.encord.ai 3 2025-08-05 2026-09-10 ok
active.mfe.index.encord.ai 2 2025-07-07 2025-07-21 ok
active.index.encord.ai 2 2025-07-07 2025-07-21 ok
auth.index.encord.ai 2 2025-07-07 2025-07-21 ok
api.index.encord.ai 2 2025-07-07 2025-07-21 ok
app.index.encord.ai 2 2025-07-07 2025-07-21 ok
ws.index.encord.ai 2 2025-07-07 2025-07-21 ok
active.test-dolby.encord.ai 1 2026-07-31 2026-07-31 ok
auth.test-dolby.encord.ai 1 2026-07-31 2026-07-31 ok
api.test-dolby.encord.ai 1 2026-07-31 2026-07-31 ok
app.test-dolby.encord.ai 1 2026-07-31 2026-07-31 ok
ws.test-dolby.encord.ai 1 2026-07-31 2026-07-31 ok

Programmatic access, with DNS A records: API GET /v1/hosts/encord.ai (API key for paging).

Shown here: hostnames with a certificate that is valid now or expired within the last 90 days. The full history since 2013 — hostnames whose last certificate expired earlier — is a Pro plan method: GET /v1/hosts-history/encord.ai.