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.

6 hosts · 231 ms

HostCertsFirst seenLast seen
m16.updates.hdfcbank.bank.in 1 2025-12-08 2025-12-08
res16.updates.hdfcbank.bank.in 1 2025-12-08 2025-12-08
t16.updates.hdfcbank.bank.in 1 2025-12-08 2025-12-08
m17.updates.hdfcbank.bank.in 1 2025-12-08 2025-12-08
res17.updates.hdfcbank.bank.in 1 2025-12-08 2025-12-08
t17.updates.hdfcbank.bank.in 1 2025-12-08 2025-12-08

Programmatic access: API GET /v1/hosts/updates.hdfcbank.bank.in (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/updates.hdfcbank.bank.in.