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.

24 hosts · 190 ms

HostCertsFirst seenLast seen
handyhand.dk 87 2026-04-18 2026-10-06
*.handyhand.dk 8 2026-04-27 2026-10-06
api-v2.handyhand.dk 5 2026-06-07 2026-10-04
gitlab.handyhand.dk 3 2026-05-06 2026-08-10
dashboard.handyhand.dk 5 2026-05-15 2026-09-11
api.dashboard.handyhand.dk 5 2026-05-31 2026-09-29
tag.handyhand.dk 5 2026-05-27 2026-09-24
censoring.handyhand.dk 5 2026-05-25 2026-09-22
health.handyhand.dk 5 2026-05-27 2026-09-26
i.handyhand.dk 8 2026-05-08 2026-09-03
api.handyhand.dk 12 2026-05-19 2026-09-19
dev.api.handyhand.dk 2 2026-05-09 2026-05-09
platform.handyhand.dk 2 2026-05-03 2026-05-03
admin.handyhand.dk 5 2026-05-14 2026-09-11
seo.handyhand.dk 4 2026-06-06 2026-10-04
partner.handyhand.dk 1 2026-09-30 2026-09-30
vector.handyhand.dk 5 2026-05-18 2026-09-14
tools.handyhand.dk 3 2026-03-24 2026-08-24
*.tools.handyhand.dk 3 2026-03-24 2026-08-24
ss.handyhand.dk 5 2026-05-31 2026-09-28
load.ss.handyhand.dk 10 2026-04-26 2026-08-23
dev.handyhand.dk 44 2026-04-18 2026-08-24
api-v2.dev.handyhand.dk 4 2026-05-21 2026-05-21
happyhelperseo.dev.handyhand.dk 24 2026-04-21 2026-08-18

Programmatic access: API GET /v1/hosts/handyhand.dk (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/handyhand.dk.