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 · 291 ms

HostCertsFirst seenLast seenDNS
doters.com 12 2026-01-18 2026-08-26 ok
*.doters.com 3 2025-09-10 2026-08-11 —
auth.doters.com 4 2026-03-11 2026-07-28 ok
api.doters.com 4 2026-03-11 2026-07-28 ok
public-api.doters.com 4 2026-03-11 2026-07-28 ok
auth-api.doters.com 4 2026-03-11 2026-07-28 ok
ablink.comunicacion.doters.com 1 2026-02-16 2026-02-16 ok
optoutwhatsapp.doters.com 12 2026-04-24 2026-08-20 ok
clicks.doters.com 2 2026-03-08 2026-07-24 ok
rts.doters.com 3 2026-05-25 2026-08-21 nodata
www.doters.com 6 2026-03-11 2026-08-26 ok

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