Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

15 hosts · 277 ms

HostCertsFirst seenLast seen
sportfive.com 25 2026-04-13 2026-10-06
*.sportfive.com 21 2026-04-13 2026-10-06
vcard.sportfive.com 11 2026-02-18 2026-06-01
cloud.update.sportfive.com 2 2025-06-15 2026-06-02
image.update.sportfive.com 4 2026-01-21 2026-09-22
click.update.sportfive.com 2 2025-06-15 2026-06-02
view.update.sportfive.com 2 2025-06-15 2026-06-02
shop.sportfive.com 4 2026-06-02 2026-10-06
playmaker.sportfive.com 4 2026-04-17 2026-09-04
s.sportfive.com 4 2026-04-19 2026-08-17
golfsales.sportfive.com 4 2026-04-18 2026-08-16
mta-sts.sportfive.com 7 2026-06-01 2026-09-29
support.sportfive.com 2 2026-09-14 2026-09-14
trust.sportfive.com 6 2026-05-03 2026-08-29
www.sportfive.com 4 2026-06-01 2026-08-10

Programmatic access: API GET /v1/hosts/sportfive.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/sportfive.com.