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 · 224 ms

HostCertsFirst seenLast seen
nettilamppu.fi 5 2026-05-30 2026-09-27
id.nettilamppu.fi 3 2026-06-13 2026-08-12
xtg.nettilamppu.fi 10 2026-06-08 2026-10-04
link.nettilamppu.fi 3 2026-06-25 2026-08-24
gjxwrn.nettilamppu.fi 3 2026-05-21 2026-10-06
link.shop.nettilamppu.fi 3 2026-07-07 2026-09-05
stop.nettilamppu.fi 5 2026-05-06 2026-09-02
sms.nettilamppu.fi 5 2026-05-06 2026-09-02
palautus.nettilamppu.fi 5 2026-05-09 2026-09-06
news.nettilamppu.fi 4 2026-04-18 2026-08-15
support.nettilamppu.fi 16 2026-04-22 2026-08-18
collector.sst.nettilamppu.fi 4 2026-06-12 2026-10-10
www.nettilamppu.fi 5 2026-05-30 2026-09-27

Programmatic access: API GET /v1/hosts/nettilamppu.fi (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/nettilamppu.fi.