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.

18 hosts · 273 ms

HostCertsFirst seenLast seenDNS
purlsoho.com 27 2026-04-22 2026-09-29 ok
*.purlsoho.com 20 2026-04-22 2026-09-29 —
mcstaging2.purlsoho.com 3 2026-07-06 2026-09-04 ok
data.purlsoho.com 1 2026-08-19 2026-08-19 ok
gmc.purlsoho.com 1 2026-09-21 2026-09-21 ok
mcprod.purlsoho.com 5 2026-05-02 2026-08-30 ok
create.purlsoho.com 8 2026-04-20 2026-08-16 ok
*.create.purlsoho.com 8 2026-04-20 2026-08-16 —
mcstaging.purlsoho.com 7 2026-05-07 2026-09-04 ok
gmc-swatch.purlsoho.com 1 2026-09-14 2026-09-14 ok
trk.hello.purlsoho.com 11 2026-05-21 2026-09-17 ok
wp.purlsoho.com 12 2026-04-28 2026-08-24 ok
*.wp.purlsoho.com 12 2026-04-28 2026-08-24 —
builder.purlsoho.com 7 2026-05-31 2026-09-26 ok
account.purlsoho.com 1 2026-08-18 2026-08-18 ok
related-projects-test.purlsoho.com 2 2026-09-11 2026-09-11 ok
*.related-projects-test.purlsoho.com 2 2026-09-11 2026-09-11 —
www.purlsoho.com 5 2026-05-02 2026-08-30 ok

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