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.

15 hosts · 345 ms

HostCertsFirst seenLast seenDNS
wecookmeals.ca 4 2026-05-21 2026-07-31 ok
staging2.wecookmeals.ca 4 2026-04-14 2026-08-31 ok
staging3.wecookmeals.ca 6 2026-04-14 2026-09-14 ok
staging4.wecookmeals.ca 4 2026-04-14 2026-09-29 ok
staging5.wecookmeals.ca 3 2026-08-27 2026-08-27 ok
*.staging5.wecookmeals.ca 2 2026-08-27 2026-08-27 —
admin.staging5.wecookmeals.ca 1 2026-08-27 2026-08-27 ok
ws.staging5.wecookmeals.ca 1 2026-08-27 2026-08-27 ok
staging.wecookmeals.ca 3 2026-06-14 2026-08-23 ok
wiki.wecookmeals.ca 4 2026-05-23 2026-08-01 ok
cdn.wecookmeals.ca 2 2025-06-20 2026-05-20 ok
pages.wecookmeals.ca 9 2026-06-01 2026-09-27 ok
ws.wecookmeals.ca 4 2026-05-21 2026-07-31 ok
itsupport.wecookmeals.ca 3 2025-07-18 2025-07-23 nxdomain
www.wecookmeals.ca 4 2026-05-21 2026-07-31 ok

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