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.

51 hosts · 440 ms

HostCertsFirst seenLast seenDNS
joinforma.com 15 2026-05-18 2026-09-13 ok
*.joinforma.com 3 2026-05-26 2026-09-09 —
mineos-hubspot-integration.infra.joinforma.com 3 2026-05-28 2026-09-15 ok
beta.joinforma.com 5 2026-04-24 2026-10-04 nodata
*.beta.joinforma.com 5 2026-04-24 2026-10-04 —
api.beta.joinforma.com 4 2026-04-15 2026-08-28 ok
internal.beta.joinforma.com 4 2026-05-31 2026-09-19 ok
admin.beta.joinforma.com 3 2026-05-17 2026-08-29 ok
test-automation.beta.joinforma.com 3 2026-05-18 2026-08-31 ok
assets.beta.joinforma.com 5 2026-04-10 2026-09-14 ok
client.beta.joinforma.com 5 2026-04-10 2026-09-22 ok
intl.client.beta.joinforma.com 1 2025-11-10 2025-11-10 ok
customer-hub.joinforma.com 11 2026-04-17 2026-08-13 ok
staging.joinforma.com 3 2026-05-08 2026-08-24 nodata
*.staging.joinforma.com 3 2026-05-08 2026-08-24 —
api.staging.joinforma.com 3 2026-05-16 2026-09-02 ok
internal.staging.joinforma.com 3 2026-05-03 2026-08-19 ok
admin.staging.joinforma.com 3 2026-05-16 2026-08-31 ok
bank-application.staging.joinforma.com 1 2025-12-17 2025-12-17 ok
test-automation.staging.joinforma.com 3 2026-05-16 2026-09-01 ok
assets.staging.joinforma.com 3 2026-05-16 2026-08-30 ok
client.staging.joinforma.com 3 2026-04-29 2026-08-20 ok
intl.client.staging.joinforma.com 1 2025-11-10 2025-11-10 ok
auth.joinforma.com 5 2026-07-18 2026-09-16 ok
api.joinforma.com 3 2026-05-19 2026-08-30 ok
ui.joinforma.com 5 2026-04-26 2026-08-24 ok
internal.joinforma.com 3 2026-05-25 2026-09-12 ok
opscim.joinforma.com 5 2026-04-12 2026-09-25 ok
admin.joinforma.com 3 2026-05-21 2026-09-04 ok
aplo.joinforma.com 9 2026-04-12 2026-08-26 ok
demo.joinforma.com 8 2026-05-01 2026-08-27 ok
auth.staging.gcp.joinforma.com 3 2026-07-16 2026-09-14 ok
auth.dev.gcp.joinforma.com 3 2026-07-10 2026-09-08 ok
test-automation.dev.gcp.joinforma.com 2 2026-05-13 2026-05-13 nxdomain
gateway.dev.gcp.joinforma.com 1 2026-04-13 2026-04-13 nxdomain
atlantis.joinforma.com 3 2026-05-18 2026-09-04 ok
assets.joinforma.com 3 2026-05-10 2026-08-26 ok
mta-sts.joinforma.com 4 2026-05-07 2026-09-26 ok
status.joinforma.com 5 2026-04-30 2026-08-28 ok
staging.aws.joinforma.com 1 2026-03-15 2026-03-15 servfail
*.staging.aws.joinforma.com 1 2026-03-15 2026-03-15 —
production.aws.joinforma.com 1 2026-03-23 2026-03-23 servfail
*.production.aws.joinforma.com 1 2026-03-23 2026-03-23 —
dev.aws.joinforma.com 1 2026-03-15 2026-03-15 servfail
*.dev.aws.joinforma.com 1 2026-03-15 2026-03-15 —
vault.joinforma.com 4 2026-04-11 2026-09-08 ok
client.joinforma.com 3 2026-05-09 2026-08-24 ok
intl.client.joinforma.com 1 2025-11-10 2025-11-10 ok
support.joinforma.com 5 2026-04-26 2026-08-24 ok
trust.joinforma.com 8 2026-05-30 2026-09-25 ok
www.joinforma.com 8 2026-04-17 2026-08-13 ok

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