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.

47 hosts · 521 ms

HostCertsFirst seenLast seenDNS
edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 ok
authenticate1.edfinancial.studentaid.gov 8 2025-12-18 2026-08-03 ok
myaccount-env1.edfinancial.studentaid.gov 8 2025-12-18 2026-08-03 ok
authenticate2.edfinancial.studentaid.gov 8 2025-12-18 2026-08-03 ok
url6069.edfinancial.studentaid.gov 3 2026-08-03 2026-08-03 ok
origin-P.edfinancial.studentaid.gov 2 2026-02-10 2026-06-08 —
NP.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 —
origin-NP.edfinancial.studentaid.gov 2 2026-02-10 2026-05-29 —
origin-PW.edfinancial.studentaid.gov 1 2026-06-08 2026-06-08 —
origin-NPW.edfinancial.studentaid.gov 1 2026-05-29 2026-05-29 —
ivrwebservice.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 ok
NP-ivrwebservice.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 —
origin-NP-ivrwebservice.edfinancial.studentaid.gov 2 2026-02-10 2026-05-29 —
origin-ivrwebservice.edfinancial.studentaid.gov 2 2026-02-10 2026-06-08 ok
ivrpaymentwebservice.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 ok
NP-ivrpaymentwebservice.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 —
origin-NP-ivrpaymentwebservice.edfinancial.studentaid.gov 2 2026-02-10 2026-05-29 —
origin-ivrpaymentwebservice.edfinancial.studentaid.gov 2 2026-02-10 2026-06-08 ok
customercare.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 ok
NP-customercare.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 —
origin-NP-customercare.edfinancial.studentaid.gov 2 2026-02-10 2026-05-29 —
origin-customercare.edfinancial.studentaid.gov 2 2026-02-10 2026-06-08 ok
masstextInboundCallback.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 —
NP-masstextInboundCallback.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 —
origin-NP-masstextInboundCallback.edfinancial.studentaid.gov 2 2026-02-10 2026-05-29 —
origin-masstextInboundCallback.edfinancial.studentaid.gov 2 2026-02-10 2026-06-08 —
masstextStatusCallback.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 —
NP-masstextStatusCallback.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 —
origin-NP-masstextStatusCallback.edfinancial.studentaid.gov 2 2026-02-10 2026-05-29 —
origin-masstextStatusCallback.edfinancial.studentaid.gov 2 2026-02-10 2026-06-08 —
m2.email.edfinancial.studentaid.gov 2 2026-07-31 2026-07-31 ok
res2.email.edfinancial.studentaid.gov 2 2026-07-31 2026-07-31 ok
t2.email.edfinancial.studentaid.gov 2 2026-07-31 2026-07-31 ok
unsuburl.edfinancial.studentaid.gov 1 2026-05-14 2026-05-14 ok
origin-unsuburl.edfinancial.studentaid.gov 1 2026-05-14 2026-05-14 ok
np-unsuburl.edfinancial.studentaid.gov 1 2026-05-14 2026-05-14 ok
origin-np-unsuburl.edfinancial.studentaid.gov 1 2026-05-14 2026-05-14 ok
customercareform.edfinancial.studentaid.gov 1 2026-02-10 2026-02-10 nxdomain
subscriptioncenter.edfinancial.studentaid.gov 8 2025-12-18 2026-08-03 ok
origin-subscriptioncenter.edfinancial.studentaid.gov 1 2026-05-14 2026-05-14 ok
np-subscriptioncenter.edfinancial.studentaid.gov 1 2026-05-14 2026-05-14 ok
origin-np-subscriptioncenter.edfinancial.studentaid.gov 1 2026-05-14 2026-05-14 ok
myaccount-cat.edfinancial.studentaid.gov 10 2025-07-01 2026-08-03 ok
myaccount.edfinancial.studentaid.gov 8 2025-12-18 2026-08-03 ok
authenticate1-test.edfinancial.studentaid.gov 8 2025-12-18 2026-08-03 nxdomain
authenticate2-test.edfinancial.studentaid.gov 9 2025-12-18 2026-08-03 ok
myaccount-prodfix.edfinancial.studentaid.gov 8 2025-12-18 2026-08-03 ok

Programmatic access, with DNS A records: API GET /v1/hosts/edfinancial.studentaid.gov (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/edfinancial.studentaid.gov.