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.

9 hosts · 171 ms

HostCertsFirst seenLast seen
res3.edm.specsavers.com.au 9 2025-10-13 2026-09-14
t3.edm.specsavers.com.au 8 2025-10-13 2026-09-13
m4.edm.specsavers.com.au 8 2025-07-21 2026-09-13
res4.edm.specsavers.com.au 5 2025-07-21 2026-09-14
t4.edm.specsavers.com.au 4 2025-07-21 2026-06-21
web.edm.specsavers.com.au 3 2025-07-21 2026-06-21
m.edm.specsavers.com.au 5 2025-07-21 2026-09-08
res.edm.specsavers.com.au 5 2025-07-21 2026-09-08
t.edm.specsavers.com.au 5 2025-07-21 2026-09-08

Programmatic access: API GET /v1/hosts/edm.specsavers.com.au (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/edm.specsavers.com.au.