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.

17 hosts · 260 ms

HostCertsFirst seenLast seenDNS
signwarehouse.com 35 2026-05-17 2026-09-30 ok
*.signwarehouse.com 18 2026-03-11 2026-09-13 —
odoostaging1.signwarehouse.com 1 2026-09-17 2026-09-17 ok
odoostaging2.signwarehouse.com 1 2026-09-17 2026-09-17 ok
pro3.signwarehouse.com 5 2026-04-29 2026-08-28 ok
hub.signwarehouse.com 7 2026-04-27 2026-09-13 ok
blog.signwarehouse.com 1 2026-08-12 2026-08-12 ok
search.signwarehouse.com 1 2026-09-21 2026-09-21 ok
auth.signwarehouse.com 10 2026-05-05 2026-09-01 ok
support-uploads.signwarehouse.com 8 2026-06-04 2026-09-30 ok
*.support-uploads.signwarehouse.com 8 2026-06-04 2026-09-30 —
files.signwarehouse.com 10 2026-05-04 2026-08-30 ok
affiliates.signwarehouse.com 3 2026-05-15 2026-09-12 ok
returns.signwarehouse.com 8 2026-05-16 2026-09-11 ok
printers.signwarehouse.com 5 2026-05-19 2026-09-18 ok
account.signwarehouse.com 17 2026-04-14 2026-09-25 ok
www.signwarehouse.com 13 2026-05-18 2026-09-28 ok

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