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.

15 hosts · 350 ms

HostCertsFirst seenLast seenDNS
akusoli.com 23 2026-05-12 2026-09-25 ok
*.akusoli.com 14 2026-05-29 2026-09-25 —
click1.send.akusoli.com 2 2026-06-30 2026-06-30 ok
click.send.akusoli.com 6 2026-06-30 2026-08-28 ok
bounces.send.akusoli.com 6 2026-06-30 2026-08-28 ok
images.send.akusoli.com 8 2026-05-12 2026-09-07 ok
click1.info.akusoli.com 2 2026-06-30 2026-06-30 ok
click.info.akusoli.com 6 2026-06-30 2026-08-28 ok
bounces.info.akusoli.com 6 2026-06-30 2026-08-28 ok
go.akusoli.com 3 2026-07-01 2026-08-29 ok
tracktor.akusoli.com 8 2026-05-12 2026-09-07 ok
itlinks.akusoli.com 8 2026-05-12 2026-09-07 ok
mta-sts.akusoli.com 6 2026-06-19 2026-08-17 ok
support.akusoli.com 11 2026-05-18 2026-09-13 ok
www.akusoli.com 10 2026-05-12 2026-09-07 ok

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