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.

61 hosts · 405 ms

HostCertsFirst seenLast seenDNS
ppfa.org 13 2026-01-22 2026-09-22 nodata
*.ppfa.org 13 2026-01-22 2026-09-22 —
sv1.ppfa.org 2 2026-04-29 2026-06-02 ok
www.sv1.ppfa.org 2 2026-04-29 2026-06-02 nxdomain
lppppf000158662.ppfa.org 3 2025-09-16 2026-09-16 nxdomain
www.lppppf000158662.ppfa.org 3 2025-09-16 2026-09-16 nxdomain
sv2.ppfa.org 2 2026-10-05 2026-10-05 nodata
x3.ppfa.org 2 2025-06-18 2026-06-17 nxdomain
www.x3.ppfa.org 2 2025-06-18 2026-06-17 nxdomain
bhsbara.ppfa.org 4 2025-08-20 2026-08-21 ok
www.bhsbara.ppfa.org 4 2025-08-20 2026-08-21 nxdomain
data.ppfa.org 1 2025-11-21 2025-11-21 ok
www.data.ppfa.org 1 2025-11-21 2025-11-21 nxdomain
tableau-beta.ppfa.org 3 2025-09-17 2026-09-18 nxdomain
www.tableau-beta.ppfa.org 3 2025-09-17 2026-09-18 nxdomain
okta.ppfa.org 3 2026-03-11 2026-08-25 nxdomain
www.okta.ppfa.org 3 2026-03-11 2026-08-25 nxdomain
ioc.ppfa.org 1 2025-10-17 2025-10-17 ok
www.ioc.ppfa.org 1 2025-10-17 2025-10-17 nxdomain
sco-data-upload.ppfa.org 2 2026-08-11 2026-08-11 nodata
aed.ppfa.org 1 2026-09-03 2026-09-03 ok
arcade.ppfa.org 2 2025-06-09 2026-06-10 ok
www.arcade.ppfa.org 2 2025-06-09 2026-06-10 nxdomain
filemage.ppfa.org 1 2025-11-09 2025-11-09 ok
www.filemage.ppfa.org 1 2025-11-09 2025-11-09 nxdomain
ppfaremote.ppfa.org 7 2025-07-09 2026-08-25 ok
www.ppfaremote.ppfa.org 7 2025-07-09 2026-08-25 nxdomain
sei.ppfa.org 2 2025-06-18 2026-06-17 nxdomain
www.sei.ppfa.org 2 2025-06-18 2026-06-17 nxdomain
api.ppfa.org 3 2026-03-24 2026-09-07 ok
www.api.ppfa.org 2 2026-03-24 2026-09-07 nxdomain
kauto.ppfa.org 8 2025-10-03 2026-09-02 ok
www.kauto.ppfa.org 8 2025-10-03 2026-09-02 nxdomain
p.ppfa.org 5 2026-04-22 2026-09-07 ok
*.gcp.ppfa.org 3 2026-05-17 2026-09-03 —
ep.ppfa.org 2 2025-06-26 2026-06-27 nxdomain
epinh1.ep.ppfa.org 2 2025-06-26 2026-06-27 nxdomain
epins1.ep.ppfa.org 2 2025-06-26 2026-06-27 nxdomain
epinh2.ep.ppfa.org 2 2025-06-26 2026-06-27 nxdomain
epins2.ep.ppfa.org 2 2025-06-26 2026-06-27 nxdomain
hfso.ep.ppfa.org 2 2025-08-16 2026-06-16 nxdomain
www.hfso.ep.ppfa.org 2 2025-08-16 2026-06-16 nxdomain
www.ep.ppfa.org 2 2025-06-26 2026-06-27 nxdomain
datadrop.ppfa.org 1 2026-09-03 2026-09-03 ok
ppfaremote-backup.ppfa.org 7 2026-02-04 2026-09-24 ok
www.ppfaremote-backup.ppfa.org 7 2026-02-04 2026-09-24 nxdomain
email.comms.ppfa.org 4 2026-06-07 2026-10-05 ok
connect.ppfa.org 2 2025-11-07 2026-03-14 ok
intranet.ppfa.org 4 2025-11-04 2026-10-05 ok
intranet-alt.ppfa.org 5 2025-11-03 2026-10-04 ok
arcade-dev.ppfa.org 2 2025-06-09 2026-06-10 ok
www.arcade-dev.ppfa.org 2 2025-06-09 2026-06-10 nxdomain
tableau-dev.ppfa.org 3 2025-08-27 2026-08-28 nxdomain
www.tableau-dev.ppfa.org 3 2025-08-27 2026-08-28 nxdomain
alteryx-dev.ppfa.org 4 2025-09-17 2026-08-12 nxdomain
www.alteryx-dev.ppfa.org 4 2025-09-17 2026-08-12 nxdomain
alteryx.ppfa.org 4 2025-09-17 2026-08-12 nxdomain
www.alteryx.ppfa.org 4 2025-09-17 2026-08-12 nxdomain
cloudgateway.ppfa.org 3 2025-09-15 2026-09-16 ok
www.cloudgateway.ppfa.org 3 2025-09-15 2026-09-16 nxdomain
blackhealthequity.ppfa.org 2 2025-09-03 2026-08-04 ok

Programmatic access, with DNS A records: API GET /v1/hosts/ppfa.org (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/ppfa.org.