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.

11 hosts · 349 ms

HostCertsFirst seenLast seenDNS
abacoadvisers.com 1 2026-04-14 2026-04-14 ok
caratulairpf.abacoadvisers.com 7 2026-05-16 2026-09-09 ok
blog.abacoadvisers.com 1 2025-11-21 2025-11-21 ok
www.blog.abacoadvisers.com 1 2025-11-21 2025-11-21 ok
crm.abacoadvisers.com 7 2026-05-16 2026-09-09 ok
info.abacoadvisers.com 10 2026-04-24 2026-08-19 ok
docs.abacoadvisers.com 2 2025-07-11 2026-07-24 ok
www.docs.abacoadvisers.com 2 2025-07-11 2026-07-24 ok
colaboradores.abacoadvisers.com 7 2026-05-16 2026-09-09 ok
surveys.abacoadvisers.com 7 2026-05-16 2026-09-09 ok
www.abacoadvisers.com 1 2026-04-14 2026-04-14 ok

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