Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

5 hosts · 257 ms

HostCertsFirst seenLast seen
i.solemates.vionicshoes.com 8 2026-04-17 2026-08-14
l.solemates.vionicshoes.com 6 2026-05-16 2026-09-11
s.solemates.vionicshoes.com 12 2026-05-08 2026-09-03
w.solemates.vionicshoes.com 10 2026-04-28 2026-08-24
x.solemates.vionicshoes.com 11 2026-05-25 2026-09-21

Programmatic access: API GET /v1/hosts/solemates.vionicshoes.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/solemates.vionicshoes.com.