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.

16 hosts · 214 ms

HostCertsFirst seenLast seen
hexarq.com 2 2026-02-03 2026-05-05
login-bch.hexarq.com 4 2025-10-02 2026-09-29
www.login-bch.hexarq.com 4 2025-10-02 2026-09-29
api.hexarq.com 1 2025-11-10 2025-11-10
login.hexarq.com 1 2026-05-06 2026-05-06
www.login.hexarq.com 1 2026-05-06 2026-05-06
api.tfr.hexarq.com 1 2026-06-23 2026-06-23
www.api.tfr.hexarq.com 1 2026-06-23 2026-06-23
ppr.hexarq.com 1 2026-01-28 2026-01-28
api-ppr.hexarq.com 4 2025-10-31 2026-10-01
www.api-ppr.hexarq.com 2 2026-04-08 2026-04-08
www.login-ppr.hexarq.com 4 2025-10-02 2026-09-29
api.tfr-ppr.hexarq.com 4 2026-04-02 2026-09-07
www.api.tfr-ppr.hexarq.com 4 2026-04-02 2026-09-07
www.ppr.hexarq.com 3 2026-01-28 2026-02-09
www.hexarq.com 2 2026-02-03 2026-02-09

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