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.

17 hosts · 232 ms

HostCertsFirst seenLast seen
spurs.com 4 2025-12-19 2026-10-01
*.spurs.com 6 2025-08-21 2026-08-20
www1.spurs.com 1 2026-10-01 2026-10-01
cv3.spurs.com 1 2026-01-22 2026-01-22
www.cv3.spurs.com 1 2026-01-22 2026-01-22
sse.spurs.com 10 2026-05-14 2026-09-09
mi.spurs.com 4 2026-04-16 2026-09-05
trino.spurs.com 4 2026-04-20 2026-08-19
rewards.spurs.com 2 2026-03-11 2026-08-11
sms.spurs.com 35 2026-04-12 2026-10-04
argocd.bbops.spurs.com 3 2026-06-26 2026-08-25
airflow-prod.bbops.spurs.com 3 2026-07-20 2026-09-18
airflow-stage.bbops.spurs.com 3 2026-06-26 2026-08-25
kafka-ui.bbops.spurs.com 3 2026-06-26 2026-08-25
trino.bbops.spurs.com 3 2026-07-10 2026-09-08
cv.spurs.com 4 2026-06-06 2026-10-05
www.spurs.com 1 2026-10-01 2026-10-01

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