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.

10 hosts · 300 ms

HostCertsFirst seenLast seenDNS
lovehoney.ca 9 2025-08-06 2026-07-28 ok
*.lovehoney.ca 2 2026-05-22 2026-05-22 —
fedc.lovehoney.ca 3 2026-05-26 2026-09-10 ok
margarete.lovehoney.ca 4 2026-04-21 2026-09-08 ok
mon.lovehoney.ca 4 2026-04-21 2026-09-08 ok
help.lovehoney.ca 6 2025-08-20 2026-06-23 ok
www.help.lovehoney.ca 1 2026-04-01 2026-04-01 nxdomain
links.lovehoney.ca 3 2026-05-19 2026-08-12 ok
margarete-client.lovehoney.ca 4 2026-04-21 2026-09-08 ok
www.lovehoney.ca 7 2025-08-06 2026-07-28 ok

Programmatic access, with DNS A records: API GET /v1/hosts/lovehoney.ca (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/lovehoney.ca.