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.

32 hosts · 332 ms

HostCertsFirst seenLast seenDNS
p.foundation 16 2025-11-21 2026-08-29 ok
*.p.foundation 10 2025-11-21 2026-08-26 —
geofeed.p.foundation 5 2026-05-02 2026-08-30 ok
tusd.p.foundation 6 2026-05-05 2026-08-05 ok
console.p.foundation 3 2026-05-07 2026-08-05 ok
newconsole.p.foundation 3 2026-05-07 2026-08-05 ok
datastore.p.foundation 12 2026-04-18 2026-08-14 ok
dev-warehouse.p.foundation 1 2026-08-14 2026-08-14 ok
studiocf.p.foundation 2 2025-11-18 2025-11-18 nxdomain
datacamp.mg.p.foundation 4 2026-04-10 2026-08-28 ok
auth.p.foundation 6 2026-07-10 2026-09-07 ok
datastore-api.p.foundation 8 2026-05-05 2026-08-31 ok
webapi.p.foundation 6 2026-06-12 2026-08-11 ok
ixm.p.foundation 6 2026-04-23 2026-08-19 ok
studio.p.foundation 13 2025-11-18 2026-08-05 ok
newstudio.p.foundation 5 2026-05-05 2026-08-05 ok
harbor.p.foundation 3 2026-05-19 2026-08-05 ok
baas.p.foundation 11 2025-11-18 2026-08-05 ok
*.ocs.p.foundation 1 2026-08-04 2026-08-04 —
430914007315173377.ocs.p.foundation 1 2026-04-12 2026-04-12 ok
432031301311336449.ocs.p.foundation 1 2026-04-12 2026-04-12 ok
432051597887930369.ocs.p.foundation 1 2026-04-12 2026-04-12 ok
4320432031301311336449-test.ocs.p.foundation 1 2026-04-12 2026-04-12 ok
hs.p.foundation 9 2026-05-30 2026-09-25 ok
hms.p.foundation 8 2026-05-05 2026-08-17 ok
assets.p.foundation 6 2026-04-30 2026-08-26 ok
mta-sts.p.foundation 3 2026-06-19 2026-08-18 ok
datastore-tus.p.foundation 12 2026-05-11 2026-09-07 ok
chat.p.foundation 10 2026-04-20 2026-08-16 ok
tusd-useast.p.foundation 1 2026-08-05 2026-08-05 nxdomain
tusd-euwest.p.foundation 1 2026-08-05 2026-08-05 nxdomain
www.p.foundation 7 2026-05-01 2026-08-29 ok

Programmatic access, with DNS A records: API GET /v1/hosts/p.foundation (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/p.foundation.