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 · 315 ms

HostCertsFirst seenLast seenDNS
mapi.pidilite.in 1 2026-04-17 2026-04-17 ok
mail.pidilite.in 1 2026-04-17 2026-04-17 ok
webmail.pidilite.in 1 2026-04-17 2026-04-17 ok
pop.pidilite.in 1 2026-04-17 2026-04-17 ok
smtp.pidilite.in 1 2026-04-17 2026-04-17 ok

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