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.

50 hosts · 370 ms

HostCertsFirst seenLast seenDNS
radiusgs.com 16 2026-04-29 2026-08-25 ok
pulse2.radiusgs.com 1 2026-02-24 2026-02-24 ok
www.pulse2.radiusgs.com 1 2026-02-24 2026-02-24 nxdomain
indigo2.radiusgs.com 1 2026-05-22 2026-05-22 ok
pulse3.radiusgs.com 1 2026-01-16 2026-01-16 ok
www.pulse3.radiusgs.com 1 2026-01-16 2026-01-16 nxdomain
pulse4.radiusgs.com 1 2026-01-16 2026-01-16 ok
pulse6.radiusgs.com 1 2026-01-16 2026-01-16 ok
avia.radiusgs.com 1 2025-07-07 2025-07-07 nxdomain
www.avia.radiusgs.com 1 2025-07-07 2025-07-07 nxdomain
eva.radiusgs.com 3 2026-03-04 2026-08-18 ok
www.eva.radiusgs.com 3 2026-03-04 2026-08-18 nxdomain
aiva.radiusgs.com 8 2025-07-07 2026-07-30 ok
www.aiva.radiusgs.com 8 2025-07-07 2026-07-30 nxdomain
rd.radiusgs.com 1 2026-06-01 2026-06-01 ok
www.rd.radiusgs.com 1 2026-06-01 2026-06-01 nxdomain
pulse.radiusgs.com 1 2026-01-16 2026-01-16 ok
www.pulse.radiusgs.com 1 2026-01-16 2026-01-16 nxdomain
dispute.radiusgs.com 1 2025-11-13 2025-11-13 ok
www.dispute.radiusgs.com 1 2025-11-13 2025-11-13 nxdomain
vdi.radiusgs.com 1 2026-03-03 2026-03-03 ok
www.vdi.radiusgs.com 1 2026-03-03 2026-03-03 nxdomain
24hr-api.radiusgs.com 5 2026-03-10 2026-09-04 ok
www.24hr-api.radiusgs.com 5 2026-03-10 2026-09-04 nxdomain
pulse3bak.radiusgs.com 1 2026-01-16 2026-01-16 ok
paymentportal.radiusgs.com 2 2025-10-14 2026-09-24 ok
www.paymentportal.radiusgs.com 2 2025-10-14 2026-09-24 ok
indigo.radiusgs.com 1 2026-05-22 2026-05-22 ok
www.indigo.radiusgs.com 1 2026-05-22 2026-05-22 nxdomain
ecp.radiusgs.com 1 2025-12-08 2025-12-08 ok
www.ecp.radiusgs.com 1 2025-12-08 2025-12-08 nxdomain
gbmcivr.radiusgs.com 2 2026-09-08 2026-09-08 nxdomain
www.gbmcivr.radiusgs.com 2 2026-09-08 2026-09-08 nxdomain
dfw2-icsa-01.rgs.radiusgs.com 3 2026-03-22 2026-09-05 nxdomain
www.dfw2-icsa-01.rgs.radiusgs.com 3 2026-03-22 2026-09-05 nxdomain
24hr-api-uat.radiusgs.com 4 2026-03-10 2026-08-24 ok
www.24hr-api-uat.radiusgs.com 4 2026-03-10 2026-08-24 nxdomain
paymentportal-uat.radiusgs.com 1 2025-12-30 2025-12-30 ok
www.paymentportal-uat.radiusgs.com 1 2025-12-30 2025-12-30 nxdomain
eft.radiusgs.com 1 2026-05-07 2026-05-07 ok
dev-eft.radiusgs.com 1 2026-04-29 2026-04-29 ok
www.dev-eft.radiusgs.com 1 2026-04-29 2026-04-29 nxdomain
www.eft.radiusgs.com 1 2026-05-07 2026-05-07 nxdomain
uatest.radiusgs.com 1 2025-12-23 2025-12-23 ok
www.uatest.radiusgs.com 1 2025-12-23 2025-12-23 nxdomain
optout.radiusgs.com 1 2025-11-01 2025-11-01 ok
www.optout.radiusgs.com 1 2025-11-01 2025-11-01 nxdomain
www.radiusgs.com 12 2026-05-07 2026-09-02 ok
pay.radiusgs.com 3 2026-02-05 2026-07-03 ok
upay.radiusgs.com 3 2026-02-05 2026-07-03 ok

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