Find every subdomain
of a domain.

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

14 hosts · 248 ms

HostCertsFirst seenLast seen
save.tv 31 2026-02-25 2026-10-01
*.save.tv 25 2026-02-25 2026-10-01
did.save.tv 10 2026-04-25 2026-09-22
production.azure.save.tv 5 2026-04-29 2026-08-27
*.production.azure.save.tv 19 2026-04-29 2026-08-27
test.azure.save.tv 5 2026-05-13 2026-09-10
*.test.azure.save.tv 17 2026-05-07 2026-09-10
trck.save.tv 3 2026-04-20 2026-06-19
premium.save.tv 3 2026-04-19 2026-06-18
aktion.save.tv 6 2026-06-06 2026-10-04
email.newsletter.save.tv 5 2026-05-31 2026-09-28
angebot.save.tv 6 2026-06-25 2026-08-23
*.angebot.save.tv 6 2026-06-25 2026-08-23
sst.save.tv 3 2026-06-06 2026-09-22

Programmatic access: API GET /v1/hosts/save.tv (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/save.tv.