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.

13 hosts · 287 ms

HostCertsFirst seenLast seenDNS
aarke.com 23 2026-04-18 2026-10-01 ok
brand.aarke.com 2 2025-06-12 2026-05-13 ok
de.aarke.com 4 2026-04-17 2026-08-19 ok
se.aarke.com 5 2026-05-21 2026-09-22 ok
uk.aarke.com 15 2026-04-15 2026-09-26 ok
global.aarke.com 12 2026-04-15 2026-08-13 ok
mediaportal.aarke.com 1 2026-02-02 2026-02-02 ok
www.mediaportal.aarke.com 1 2026-02-02 2026-02-02 nxdomain
career.aarke.com 10 2026-05-18 2026-09-26 ok
fr.aarke.com 4 2026-04-11 2026-08-13 ok
qr.aarke.com 5 2026-04-27 2026-08-24 ok
account.aarke.com 9 2026-04-21 2026-08-30 ok
www.aarke.com 22 2026-04-14 2026-09-25 ok

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