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.

33 hosts · 364 ms

HostCertsFirst seenLast seenDNS
adviacu.org 18 2025-12-06 2026-09-27 ok
*.adviacu.org 5 2026-02-19 2026-02-20 —
synweb1.adviacu.org 1 2025-12-11 2025-12-11 nxdomain
www.synweb1.adviacu.org 1 2025-12-11 2025-12-11 nxdomain
amelia.adviacu.org 1 2025-12-24 2025-12-24 ok
www.amelia.adviacu.org 1 2025-12-24 2025-12-24 nxdomain
nxd.adviacu.org 5 2026-04-08 2026-09-23 ok
marketplace.adviacu.org 18 2026-05-09 2026-09-04 ok
secure.adviacu.org 8 2026-04-16 2026-08-12 ok
remote.adviacu.org 5 2026-06-01 2026-09-29 ok
capig.adviacu.org 12 2026-05-15 2026-09-11 ok
securemail.adviacu.org 2 2025-12-04 2026-01-05 nxdomain
www.securemail.adviacu.org 2 2025-12-04 2026-01-05 nxdomain
link.webform.adviacu.org 5 2026-05-05 2026-09-02 ok
sso-newgen.adviacu.org 2 2025-10-21 2026-09-11 nxdomain
www.sso-newgen.adviacu.org 2 2025-10-21 2026-09-11 nxdomain
origination.adviacu.org 46 2026-04-24 2026-10-04 ok
go.adviacu.org 8 2026-05-07 2026-09-02 ok
nxp.adviacu.org 5 2026-04-08 2026-09-23 ok
es.adviacu.org 5 2026-04-23 2026-08-22 ok
pages.adviacu.org 10 2026-05-07 2026-09-02 ok
openacctops.adviacu.org 1 2025-10-20 2025-10-20 ok
www.openacctops.adviacu.org 1 2025-10-20 2025-10-20 nxdomain
protectplus.adviacu.org 1 2026-05-12 2026-05-12 ok
openacct.adviacu.org 1 2025-10-20 2025-10-20 ok
www.openacct.adviacu.org 1 2025-10-20 2025-10-20 nxdomain
sso-newgen-test.adviacu.org 2 2025-10-21 2026-09-04 nxdomain
www.sso-newgen-test.adviacu.org 2 2025-10-21 2026-09-04 nxdomain
text.adviacu.org 3 2025-10-14 2026-09-14 ok
originationdev.adviacu.org 46 2026-04-24 2026-10-04 ok
www.adviacu.org 11 2025-12-06 2026-09-27 ok
nx.adviacu.org 5 2026-04-08 2026-09-23 nxdomain
www.nx.adviacu.org 5 2026-04-08 2026-09-23 nxdomain

Programmatic access, with DNS A records: API GET /v1/hosts/adviacu.org (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/adviacu.org.