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.

9 hosts · 362 ms

HostCertsFirst seenLast seenDNS
canxida.com 23 2026-05-10 2026-09-30 ok
*.canxida.com 20 2026-05-10 2026-09-30 —
blog.canxida.com 5 2026-05-23 2026-09-21 ok
webdisk.canxida.com 4 2026-07-29 2026-10-05 ok
cpanel.canxida.com 4 2026-07-29 2026-10-05 ok
mail.canxida.com 8 2026-04-30 2026-10-05 ok
webmail.canxida.com 4 2026-07-29 2026-10-05 ok
cpcalendars.canxida.com 4 2026-07-29 2026-10-05 ok
cpcontacts.canxida.com 4 2026-07-29 2026-10-05 ok

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