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 · 313 ms

HostCertsFirst seenLast seen
snagged.com 27 2026-04-11 2026-10-05
*.snagged.com 14 2026-04-11 2026-10-05
swag.snagged.com 5 2026-05-08 2026-09-05
research.snagged.com 5 2026-05-26 2026-09-26
app.snagged.com 5 2026-05-31 2026-10-04
hooks.snagged.com 5 2026-05-13 2026-09-10
auctions.snagged.com 5 2026-05-19 2026-09-21
isit.snagged.com 5 2026-05-03 2026-09-06
www.snagged.com 9 2026-05-18 2026-09-14

Programmatic access: API GET /v1/hosts/snagged.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/snagged.com.