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.

11 hosts · 259 ms

HostCertsFirst seenLast seenDNS
ikea.kr 8 2026-05-19 2026-09-14 ok
myservice.ikea.kr 1 2025-12-11 2025-12-11 ok
www.myservice.ikea.kr 1 2025-12-11 2025-12-11 nxdomain
cloud.news.email.ikea.kr 1 2025-11-01 2025-11-01 ok
data.e.news.email.ikea.kr 2 2026-07-13 2026-07-13 ok
cdn.e.news.email.ikea.kr 12 2026-07-09 2026-07-16 ok
image.news.email.ikea.kr 2 2025-12-08 2026-02-02 ok
click.news.email.ikea.kr 1 2025-11-01 2025-11-01 ok
view.news.email.ikea.kr 1 2025-11-02 2025-11-02 ok
go.ikea.kr 12 2026-06-05 2026-10-01 ok
www.ikea.kr 10 2026-04-13 2026-08-10 ok

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