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.

12 hosts · 279 ms

HostCertsFirst seenLast seenDNS
ikea.no 15 2026-05-20 2026-09-28 ok
*.ikea.no 1 2026-09-28 2026-09-28 —
tracking.ikea.no 2 2026-05-25 2026-10-07 ok
cloud.news.email.ikea.no 2 2025-07-31 2026-07-18 ok
data.e.news.email.ikea.no 2 2026-07-14 2026-07-14 ok
cdn.e.news.email.ikea.no 9 2026-07-09 2026-07-16 ok
image.news.email.ikea.no 3 2025-09-13 2026-08-28 ok
click.news.email.ikea.no 2 2025-07-28 2026-07-15 ok
view.news.email.ikea.no 2 2025-07-26 2026-07-15 ok
go.ikea.no 6 2026-06-04 2026-08-02 ok
services.ikea.no 3 2026-05-25 2026-10-07 ok
www.ikea.no 10 2026-04-14 2026-08-10 ok

Programmatic access, with DNS A records: API GET /v1/hosts/ikea.no (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.no.