Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

9 hosts · 214 ms

HostCertsFirst seenLast seenDNS
ikea.si 9 2026-05-19 2026-09-14 ok
cloud.news.email.ikea.si 2 2025-07-27 2026-07-14 ok
data.e.news.email.ikea.si 2 2026-07-15 2026-07-15 ok
cdn.e.news.email.ikea.si 6 2026-07-09 2026-07-16 ok
image.news.email.ikea.si 3 2025-09-13 2026-08-28 ok
click.news.email.ikea.si 2 2025-07-27 2026-07-17 ok
view.news.email.ikea.si 2 2025-07-31 2026-07-18 ok
go.ikea.si 15 2026-06-04 2026-09-30 ok
www.ikea.si 12 2026-04-13 2026-10-07 ok

Programmatic access, with DNS A records: API GET /v1/hosts/ikea.si (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/ikea.si.