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.

19 hosts · 351 ms

HostCertsFirst seenLast seenDNS
avafin.es 43 2026-04-16 2026-10-04 ok
*.avafin.es 16 2026-04-16 2026-10-04 —
media.avafin.es 5 2026-09-30 2026-09-30 ok
proxy.staging.avafin.es 13 2026-04-16 2026-09-23 ok
track.avafin.es 5 2026-05-29 2026-09-26 ok
click.avafin.es 5 2026-05-14 2026-09-12 ok
l.avafin.es 10 2026-05-09 2026-09-16 ok
portal.avafin.es 13 2026-04-16 2026-09-22 ok
staging.portal.avafin.es 18 2026-05-05 2026-09-17 ok
pagofacil.avafin.es 6 2026-05-08 2026-09-03 ok
mails.avafin.es 4 2026-04-15 2026-08-13 ok
test.avafin.es 9 2026-09-18 2026-10-02 nodata
*.test.avafin.es 9 2026-09-18 2026-10-02 —
media.test.avafin.es 2 2026-09-21 2026-09-21 ok
preview.avafin.es 10 2026-09-30 2026-09-30 ok
*.preview.avafin.es 4 2026-09-30 2026-09-30 —
media.preview.avafin.es 5 2026-09-30 2026-09-30 ok
www.avafin.es 28 2026-05-23 2026-09-18 ok
media.www.avafin.es 10 2026-09-30 2026-09-30 ok

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