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.

14 hosts · 377 ms

HostCertsFirst seenLast seenDNS
nourish.com 22 2026-04-24 2026-09-16 ok
*.nourish.com 16 2026-01-30 2026-09-16 —
auth-staging.nourish.com 10 2026-04-30 2026-08-27 ok
signup-staging.nourish.com 3 2026-06-13 2026-08-13 ok
webhooks-staging.nourish.com 1 2026-01-27 2026-01-27 ok
auth.nourish.com 10 2026-05-01 2026-08-28 ok
email.nourish.com 3 2026-04-28 2026-08-15 ok
go.nourish.com 5 2026-05-30 2026-08-17 ok
signup.nourish.com 3 2026-06-12 2026-08-13 ok
webhooks.nourish.com 1 2026-01-27 2026-01-27 ok
eng-stats.nourish.com 11 2026-05-31 2026-09-27 ok
status.nourish.com 3 2026-07-14 2026-09-15 ok
*.preview.nourish.com 6 2026-03-02 2026-09-07 —
www.nourish.com 10 2026-04-23 2026-08-20 ok

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