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 · 237 ms

HostCertsFirst seenLast seenDNS
ikea.us 13 2026-05-20 2026-09-28 ok
*.ikea.us 1 2026-09-28 2026-09-28 —
food.ikea.us 4 2026-04-17 2026-08-11 ok
mta-sts.cloud.email.ikea.us 2 2026-03-06 2026-07-22 ok
cloud.news.email.ikea.us 1 2026-05-25 2026-05-25 ok
data.e.news.email.ikea.us 2 2026-06-23 2026-06-23 ok
cdn.e.news.email.ikea.us 35 2026-06-23 2026-07-16 ok
image.news.email.ikea.us 2 2026-04-20 2026-06-08 ok
click.news.email.ikea.us 1 2026-05-23 2026-05-23 ok
view.news.email.ikea.us 2 2026-04-27 2026-09-28 ok
foodfacts.ikea.us 4 2026-05-17 2026-09-08 ok

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