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.

24 hosts · 308 ms

HostCertsFirst seenLast seenDNS
informa.es 3 2026-03-23 2026-09-15 ok
*.informa.es 4 2026-02-17 2026-09-15 —
sbc1.informa.es 1 2025-11-14 2025-11-14 ok
www.sbc1.informa.es 1 2025-11-14 2025-11-14 nxdomain
sbc2.informa.es 1 2025-11-14 2025-11-14 ok
www.sbc2.informa.es 1 2025-11-14 2025-11-14 nxdomain
rsc.informa.es 2 2026-04-13 2026-09-15 ok
sabi.informa.es 1 2026-05-22 2026-05-22 ok
www.sabi.informa.es 1 2026-05-22 2026-05-22 nxdomain
cloud.email.informa.es 3 2025-06-17 2026-10-05 ok
image.email.informa.es 2 2026-02-03 2026-05-21 ok
click.email.informa.es 3 2025-06-17 2026-06-22 ok
view.email.informa.es 3 2025-06-17 2026-06-17 ok
cdn.informa.es 1 2025-12-10 2025-12-10 ok
empleo.informa.es 4 2025-11-13 2025-11-17 ok
www.empleo.informa.es 4 2025-11-13 2025-11-17 nxdomain
catalogo.informa.es 3 2026-04-28 2026-09-28 ok
ftp.informa.es 1 2026-02-13 2026-02-13 ok
services.informa.es 1 2025-10-14 2025-10-14 ok
promociones.informa.es 2 2025-10-13 2026-09-13 ok
clientes.informa.es 2 2026-02-03 2026-02-03 ok
numero-duns.informa.es 1 2025-12-10 2025-12-10 ok
quienes-somos.informa.es 2 2026-02-19 2026-07-23 ok
www.informa.es 2 2026-02-03 2026-02-03 ok

Programmatic access, with DNS A records: API GET /v1/hosts/informa.es (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/informa.es.