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.

23 hosts · 324 ms

HostCertsFirst seenLast seenDNS
anaheimducks.com 3 2026-02-13 2026-09-27 ok
data.anaheimducks.com 5 2026-05-21 2026-09-18 ok
brand.anaheimducks.com 20 2026-05-24 2026-09-19 ok
videoshare.anaheimducks.com 3 2026-02-18 2026-10-02 ok
pricing.anaheimducks.com 14 2026-05-22 2026-09-18 ok
mi.anaheimducks.com 5 2026-05-16 2026-09-24 ok
trck.info.anaheimducks.com 3 2026-06-29 2026-09-07 ok
app.info.anaheimducks.com 3 2026-06-29 2026-09-07 ok
images.info.anaheimducks.com 3 2026-06-16 2026-08-25 ok
pages.info.anaheimducks.com 3 2026-06-29 2026-09-07 ok
go.anaheimducks.com 3 2026-06-29 2026-09-07 ok
cloud.letsgo.anaheimducks.com 2 2026-04-29 2026-10-01 servfail
image.letsgo.anaheimducks.com 22 2026-04-29 2026-10-05 ok
click.letsgo.anaheimducks.com 5 2026-04-29 2026-09-30 ok
view.letsgo.anaheimducks.com 3 2026-04-29 2026-09-30 ok
api.hops.anaheimducks.com 3 2026-02-20 2026-10-04 ok
app.hops.anaheimducks.com 3 2026-02-27 2026-07-24 ok
tickets.anaheimducks.com 18 2026-05-29 2026-09-25 ok
smart.anaheimducks.com 4 2026-06-07 2026-10-05 ok
support.anaheimducks.com 4 2026-02-21 2026-10-05 ok
www.anaheimducks.com 4 2026-02-13 2026-09-27 ok
themighty.anaheimducks.com 4 2025-09-16 2026-09-19 ok
www.themighty.anaheimducks.com 1 2025-09-16 2025-09-16 nxdomain

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