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.

8 hosts · 273 ms

HostCertsFirst seenLast seenDNS
onelink.com 34 2026-04-06 2026-10-06 ok
*.onelink.com 34 2026-04-06 2026-10-06 —
clicks.e.onelink.com 9 2026-06-26 2026-09-04 ok
*.fastly.cdn.onelink.com 32 2026-04-07 2026-10-06 —
statics.onelink.com 14 2026-04-08 2026-09-30 ok
qa-statics.onelink.com 9 2026-04-08 2026-09-30 nxdomain
preprod-statics.onelink.com 13 2026-04-08 2026-09-25 nxdomain
edge-statics.onelink.com 14 2026-04-08 2026-09-30 nxdomain

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