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.

28 hosts · 381 ms

HostCertsFirst seenLast seenDNS
endometriose.app 10 2026-05-08 2026-09-14 ok
*.endometriose.app 10 2026-05-08 2026-09-14 —
diga.endometriose.app 5 2026-06-09 2026-10-01 ok
aihub.endometriose.app 11 2026-05-29 2026-09-24 ok
dashboard.endometriose.app 4 2026-04-15 2026-08-14 ok
aufgabe.endometriose.app 1 2026-09-24 2026-09-24 ok
voice.endometriose.app 3 2026-06-17 2026-08-18 ok
bridge.endometriose.app 3 2026-06-18 2026-08-17 ok
time.endometriose.app 4 2026-07-29 2026-10-01 ok
feature.endometriose.app 2 2026-07-29 2026-07-29 nodata
*.feature.endometriose.app 2 2026-07-29 2026-07-29 —
versorgung.endometriose.app 4 2026-04-09 2026-08-13 ok
aiapi.endometriose.app 13 2026-05-29 2026-09-25 ok
meetings-feedback.endometriose.app 1 2026-06-15 2026-06-15 ok
rapidmail.endometriose.app 3 2026-05-20 2026-08-04 ok
still.endometriose.app 1 2026-09-07 2026-09-07 ok
marketingtool.endometriose.app 1 2026-08-25 2026-08-25 ok
contenttool.endometriose.app 1 2026-08-07 2026-08-07 ok
crm.endometriose.app 1 2026-08-12 2026-08-12 ok
brain-mcp.endometriose.app 3 2026-04-29 2026-09-29 ok
support-planer.endometriose.app 1 2026-09-04 2026-09-04 ok
updates.endometriose.app 4 2026-04-24 2026-06-26 nxdomain
goals.endometriose.app 5 2026-05-09 2026-09-08 ok
status.endometriose.app 4 2026-06-06 2026-10-03 ok
api.nexus.endometriose.app 1 2026-09-23 2026-09-23 ok
supportassessment.endometriose.app 3 2026-06-15 2026-08-17 ok
dev.endometriose.app 5 2026-05-15 2026-09-21 ok
diga-dev.endometriose.app 5 2026-05-21 2026-09-26 ok

Programmatic access, with DNS A records: API GET /v1/hosts/endometriose.app (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/endometriose.app.