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.

5 hosts · 328 ms

HostCertsFirst seenLast seenDNS
email.mandsupdates.in 1 2025-10-31 2025-10-31 ok
*.email.mandsupdates.in 3 2026-04-22 2026-09-22 —
links.email.mandsupdates.in 1 2025-10-31 2025-10-31 ok
delivery.email.mandsupdates.in 6 2026-04-18 2026-10-01 ok
elink.communication.mandsupdates.in 47 2026-04-20 2026-08-26 ok

Programmatic access, with DNS A records: API GET /v1/hosts/mandsupdates.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/mandsupdates.in.