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.

9 hosts · 235 ms

HostCertsFirst seenLast seenDNS
afppopular.com.do 22 2025-09-25 2026-09-03 ok
*.afppopular.com.do 20 2026-02-12 2026-08-17 —
cloud.mail.afppopular.com.do 1 2025-11-06 2025-11-06 ok
image.mail.afppopular.com.do 3 2026-02-12 2026-09-07 ok
click.mail.afppopular.com.do 1 2025-11-06 2025-11-06 ok
view.mail.afppopular.com.do 1 2025-11-05 2025-11-05 ok
consultas.afppopular.com.do 1 2026-06-06 2026-06-06 ok
www.consultas.afppopular.com.do 1 2026-06-06 2026-06-06 nxdomain
www.afppopular.com.do 2 2025-09-25 2026-09-03 ok

Programmatic access, with DNS A records: API GET /v1/hosts/afppopular.com.do (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/afppopular.com.do.