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.

16 hosts · 240 ms

HostCertsFirst seenLast seenDNS
payinstacard.com 15 2025-11-09 2026-09-20 ok
*.payinstacard.com 15 2025-11-09 2026-09-20 —
www.cmpapiv1.payinstacard.com 2 2026-05-15 2026-05-15 ok
appwrite.payinstacard.com 9 2026-06-01 2026-09-28 ok
drive.payinstacard.com 10 2026-05-30 2026-09-27 ok
gc.staging.payinstacard.com 5 2026-05-13 2026-09-11 ok
wealth.payinstacard.com 1 2026-07-03 2026-07-03 ok
cmp.payinstacard.com 6 2026-05-15 2026-05-28 ok
*.cmp.payinstacard.com 6 2026-05-15 2026-05-28 —
csr.payinstacard.com 8 2026-04-14 2026-08-12 ok
books.payinstacard.com 12 2026-08-28 2026-09-11 ok
rs.payinstacard.com 4 2026-04-14 2026-08-13 ok
cmp-rs.payinstacard.com 2 2026-09-21 2026-09-21 ok
www.cmp-rs.payinstacard.com 1 2026-09-21 2026-09-21 ok
support.payinstacard.com 58 2026-04-14 2026-10-06 ok
z.payinstacard.com 12 2026-05-26 2026-08-11 ok

Programmatic access, with DNS A records: API GET /v1/hosts/payinstacard.com (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/payinstacard.com.