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 · 469 ms

HostCertsFirst seenLast seenDNS
familyhandyman.com 13 2026-05-24 2026-09-19 ok
*.familyhandyman.com 12 2026-05-24 2026-09-19 —
rs-stripe.familyhandyman.com 5 2026-05-12 2026-09-09 ok
sli.familyhandyman.com 1 2025-12-14 2025-12-14 ok
ca.mail.familyhandyman.com 4 2026-04-12 2026-08-10 ok
e.mail.familyhandyman.com 4 2026-04-12 2026-08-10 ok
preferences.mail.familyhandyman.com 10 2026-05-12 2026-09-07 ok
images.mail.familyhandyman.com 2 2025-08-01 2026-07-02 ok
view.mail.familyhandyman.com 2 2025-08-01 2026-07-02 ok
tachyon.familyhandyman.com 3 2026-05-23 2026-09-07 ok
shop.familyhandyman.com 11 2026-05-16 2026-09-26 ok
order.familyhandyman.com 9 2025-06-25 2026-08-08 ok
bytes.familyhandyman.com 3 2026-05-26 2026-08-04 ok
tollbit.familyhandyman.com 26 2026-04-07 2026-09-18 ok

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