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.

12 hosts · 330 ms

HostCertsFirst seenLast seenDNS
novamarine.com 5 2026-05-02 2026-08-30 ok
www2.novamarine.com 5 2026-05-23 2026-09-20 ok
media.novamarine.com 2 2026-03-03 2026-07-19 ok
www-old.novamarine.com 5 2026-05-24 2026-09-21 ok
crescere.novamarine.com 12 2026-05-09 2026-07-26 ok
euronaval.novamarine.com 2 2026-08-27 2026-08-27 ok
mail.novamarine.com 5 2026-05-02 2026-08-30 ok
starrun.novamarine.com 2 2026-08-13 2026-08-13 ok
go.novamarine.com 9 2026-04-12 2026-09-09 ok
padelcup.novamarine.com 8 2026-05-12 2026-07-27 ok
www.novamarine.com 5 2026-05-02 2026-08-30 ok
investorday.novamarine.com 8 2026-05-10 2026-07-25 ok

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