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.

13 hosts · 263 ms

HostCertsFirst seenLast seen
crestclean.co.nz 7 2026-05-01 2026-09-28
web.crestclean.co.nz 3 2025-10-24 2026-09-29
www.web.crestclean.co.nz 3 2025-10-24 2026-09-29
staging.crestclean.co.nz 2 2026-08-10 2026-08-28
training.crestclean.co.nz 10 2026-04-22 2026-08-20
elink.crestclean.co.nz 2 2025-08-29 2026-08-02
www.elink.crestclean.co.nz 2 2025-08-29 2026-08-02
customer.crestclean.co.nz 4 2025-07-10 2026-07-07
www.customer.crestclean.co.nz 1 2025-09-28 2025-09-28
support.crestclean.co.nz 15 2026-05-22 2026-09-17
dev.crestclean.co.nz 5 2026-05-12 2026-09-07
trainingdev.crestclean.co.nz 14 2026-05-16 2026-09-26
www.crestclean.co.nz 7 2026-05-01 2026-09-28

Programmatic access: API GET /v1/hosts/crestclean.co.nz (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/crestclean.co.nz.