Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

42 hosts · 199 ms

HostCertsFirst seenLast seen
casa.it 10 2025-07-07 2026-09-15
*.casa.it 11 2025-07-07 2026-09-15
guida.casa.it 4 2026-04-20 2026-10-01
agenzie.guida.casa.it 4 2026-04-20 2026-10-01
costruttori.guida.casa.it 5 2026-04-20 2026-10-01
privati.guida.casa.it 4 2026-04-12 2026-08-10
l.opportunita.casa.it 9 2026-06-02 2026-09-28
x.opportunita.casa.it 9 2026-06-02 2026-09-29
yvtgva.casa.it 3 2026-05-24 2026-10-02
prd.casa.it 7 2025-07-07 2026-09-10
*.prd.casa.it 9 2025-07-07 2026-09-10
*.eu-south-1.prd.casa.it 2 2025-07-07 2026-06-07
*.eu-central-1.prd.casa.it 2 2026-04-10 2026-09-10
*.eu-west-1.prd.casa.it 2 2025-08-24 2026-05-11
*.cdn.prd.casa.it 7 2025-07-07 2026-09-10
*.origin.prd.casa.it 8 2025-07-07 2026-09-10
agenzie.casa.it 6 2026-05-06 2026-09-18
*.agenzie.casa.it 1 2026-05-06 2026-05-06
idealista.agenzie.casa.it 5 2026-04-27 2026-08-31
*.testzone.casa.it 2 2026-05-07 2026-05-07
l.mailing.casa.it 7 2026-06-02 2026-09-28
x.mailing.casa.it 10 2026-06-02 2026-09-28
www.blog.casa.it 4 2026-06-06 2026-10-04
stg.casa.it 3 2025-10-06 2026-09-05
*.stg.casa.it 5 2025-10-06 2026-09-05
*.eu-west-1.stg.casa.it 2 2025-10-06 2026-05-11
*.cdn.stg.casa.it 3 2025-10-06 2026-09-05
*.origin.stg.casa.it 3 2025-10-06 2026-05-11
l.comunicazioni.casa.it 11 2026-06-02 2026-09-28
x.comunicazioni.casa.it 14 2026-06-03 2026-09-30
*.internal.casa.it 6 2026-05-11 2026-05-11
mail.casa.it 1 2026-02-16 2026-02-16
col.casa.it 5 2026-05-17 2026-09-10
dp.casa.it 3 2025-10-08 2026-09-22
l.newsletter.casa.it 12 2026-06-02 2026-09-29
x.newsletter.casa.it 11 2026-06-02 2026-09-28
cms.casa.it 5 2026-04-20 2026-10-01
dev.casa.it 3 2025-08-18 2026-07-17
*.dev.casa.it 5 2025-08-18 2026-07-17
*.eu-west-1.dev.casa.it 2 2025-08-20 2026-05-11
*.cdn.dev.casa.it 3 2025-08-18 2026-07-17
*.origin.dev.casa.it 3 2025-08-20 2026-05-11

Programmatic access: API GET /v1/hosts/casa.it (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/casa.it.