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.

7 hosts · 343 ms

HostCertsFirst seenLast seenDNS
nexusinteractive.ie 42 2026-04-17 2026-09-07 ok
*.nexusinteractive.ie 7 2026-04-17 2026-08-15 —
cdn.nexusinteractive.ie 20 2026-05-11 2026-09-07 ok
socials.nexusinteractive.ie 10 2026-05-06 2026-09-02 ok
assets.nexusinteractive.ie 6 2026-05-11 2026-09-06 nxdomain
www.nexusinteractive.ie 5 2026-04-30 2026-08-28 ok
roblox.nexusinteractive.ie 3 2026-07-19 2026-09-18 ok

Programmatic access, with DNS A records: API GET /v1/hosts/nexusinteractive.ie (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/nexusinteractive.ie.