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.

20 hosts · 367 ms

HostCertsFirst seenLast seenDNS
goodranchers.com 32 2025-06-21 2026-10-04 ok
*.goodranchers.com 20 2025-06-21 2026-10-04 —
brand.goodranchers.com 5 2026-06-23 2026-08-17 ok
staging.goodranchers.com 4 2026-04-20 2026-09-30 ok
testing.goodranchers.com 3 2026-05-12 2026-08-26 ok
dahdh.goodranchers.com 6 2026-05-27 2026-09-23 ok
auth.goodranchers.com 10 2026-04-30 2026-08-26 ok
bimi.goodranchers.com 8 2026-06-15 2026-08-14 ok
admin.goodranchers.com 3 2026-05-29 2026-09-12 ok
go.goodranchers.com 5 2026-05-02 2026-09-17 ok
gr-data-mcp.goodranchers.com 2 2026-07-28 2026-09-19 ok
files.goodranchers.com 13 2026-05-12 2026-09-07 ok
sms.goodranchers.com 11 2026-06-06 2026-10-02 ok
gifts.goodranchers.com 2 2025-10-02 2026-09-02 ok
checkout.goodranchers.com 17 2026-04-19 2026-10-01 ok
staging.checkout.goodranchers.com 9 2026-05-21 2026-09-16 ok
preview.goodranchers.com 4 2026-04-24 2026-10-03 ok
www.goodranchers.com 5 2026-05-15 2026-09-11 ok
try.goodranchers.com 2 2026-03-04 2026-08-04 ok
*.try.goodranchers.com 2 2026-03-04 2026-08-04 —

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