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.

8 hosts · 272 ms

HostCertsFirst seenLast seenDNS
ikea.com.au 13 2026-05-19 2026-09-15 ok
cloud.news.email.ikea.com.au 1 2026-05-16 2026-05-16 ok
data.e.news.email.ikea.com.au 2 2026-07-10 2026-07-10 ok
cdn.e.news.email.ikea.com.au 21 2026-07-09 2026-07-16 ok
image.news.email.ikea.com.au 3 2025-08-11 2026-07-13 ok
click.news.email.ikea.com.au 1 2026-05-20 2026-05-20 ok
view.news.email.ikea.com.au 1 2026-05-15 2026-05-15 ok
www.ikea.com.au 12 2026-04-13 2026-08-10 ok

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