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.

100 hosts (first page) · 462 ms

HostCertsFirst seenLast seenDNS
myplanportal.com 20 2025-08-06 2026-09-29 ok
api01.myplanportal.com 13 2025-06-07 2026-08-24 ok
qaapi01.myplanportal.com 12 2025-06-07 2026-08-20 ok
qaapih1.myplanportal.com 1 2026-01-06 2026-01-06 nxdomain
stressapih1.myplanportal.com 1 2026-01-05 2026-01-05 nxdomain
api02.myplanportal.com 10 2025-06-07 2026-08-24 ok
qaapi02.myplanportal.com 11 2025-06-07 2026-08-20 ok
strapi02.myplanportal.com 9 2025-06-07 2026-08-20 ok
apih2.myplanportal.com 2 2025-06-07 2025-06-07 nxdomain
qaapih2.myplanportal.com 1 2025-06-07 2025-06-07 nxdomain
stressapih2.myplanportal.com 2 2025-06-07 2025-06-07 nxdomain
api03.myplanportal.com 13 2025-06-07 2026-08-24 ok
qaapi03.myplanportal.com 17 2025-06-07 2026-08-20 ok
apih3.myplanportal.com 1 2025-06-07 2025-06-07 ok
qaapih3.myplanportal.com 1 2026-01-06 2026-01-06 servfail
stressapih3.myplanportal.com 1 2026-01-13 2026-01-13 servfail
ap5.myplanportal.com 20 2025-07-10 2026-08-24 nxdomain
health1.allinahealthaetna.myplanportal.com 2 2026-05-14 2026-08-25 ok
experience.allinahealthaetna.myplanportal.com 20 2025-07-31 2026-09-21 ok
qa2experience.allinahealthaetna.myplanportal.com 4 2025-08-28 2026-07-30 nxdomain
dev2experience.allinahealthaetna.myplanportal.com 5 2025-08-28 2026-08-06 nxdomain
qa3experience.allinahealthaetna.myplanportal.com 17 2025-07-12 2026-08-25 ok
dev3experience.allinahealthaetna.myplanportal.com 4 2025-08-28 2026-08-07 nxdomain
qaexperience.allinahealthaetna.myplanportal.com 4 2025-08-28 2026-08-07 ok
devexperience.allinahealthaetna.myplanportal.com 4 2025-08-28 2026-07-30 nxdomain
health.allinahealthaetna.myplanportal.com 25 2025-07-08 2026-09-29 ok
qa-health.allinahealthaetna.myplanportal.com 32 2025-07-08 2026-08-25 ok
www.qa-health.allinahealthaetna.myplanportal.com 30 2025-07-08 2026-08-25 ok
stg-health.allinahealthaetna.myplanportal.com 3 2025-07-30 2026-07-26 ok
www.stg-health.allinahealthaetna.myplanportal.com 3 2025-07-30 2026-07-26 nxdomain
www.health.allinahealthaetna.myplanportal.com 19 2025-07-08 2026-09-29 ok
member.allinahealthaetna.myplanportal.com 19 2025-07-31 2026-09-21 ok
www.member.allinahealthaetna.myplanportal.com 16 2025-07-31 2026-09-21 nxdomain
health1test.allinahealthaetna.myplanportal.com 3 2026-05-07 2026-08-25 ok
www.allinahealthaetna.myplanportal.com 48 2025-07-14 2026-09-29 ok
qa2www.allinahealthaetna.myplanportal.com 2 2026-01-29 2026-02-23 ok
dev2www.allinahealthaetna.myplanportal.com 3 2026-04-05 2026-08-12 nxdomain
qa3www.allinahealthaetna.myplanportal.com 3 2026-01-29 2026-09-22 ok
dev3www.allinahealthaetna.myplanportal.com 3 2026-04-07 2026-08-10 nxdomain
qa4www.allinahealthaetna.myplanportal.com 3 2026-04-05 2026-08-12 ok
qawww.allinahealthaetna.myplanportal.com 21 2025-07-30 2026-09-22 ok
devwww.allinahealthaetna.myplanportal.com 4 2026-04-05 2026-09-03 nxdomain
member1.sutterhealthaetna.myplanportal.com 2 2026-05-14 2026-08-25 ok
experience.sutterhealthaetna.myplanportal.com 17 2025-08-28 2026-09-21 ok
qa2experience.sutterhealthaetna.myplanportal.com 4 2025-08-28 2026-07-30 ok
dev2experience.sutterhealthaetna.myplanportal.com 5 2025-08-28 2026-08-06 nxdomain
qa3experience.sutterhealthaetna.myplanportal.com 12 2025-07-14 2026-08-25 ok
qaexperience.sutterhealthaetna.myplanportal.com 4 2025-08-28 2026-08-07 ok
devexperience.sutterhealthaetna.myplanportal.com 4 2025-08-28 2026-07-30 nxdomain
health.sutterhealthaetna.myplanportal.com 25 2025-07-08 2026-09-29 ok
qa-health.sutterhealthaetna.myplanportal.com 32 2025-07-08 2026-08-25 ok
www.qa-health.sutterhealthaetna.myplanportal.com 26 2025-07-08 2026-08-25 ok
stg-health.sutterhealthaetna.myplanportal.com 3 2025-07-30 2026-07-26 ok
www.stg-health.sutterhealthaetna.myplanportal.com 3 2025-07-30 2026-07-26 nxdomain
www.health.sutterhealthaetna.myplanportal.com 19 2025-07-08 2026-09-29 ok
member.sutterhealthaetna.myplanportal.com 3 2026-05-15 2026-08-12 nxdomain
www.sutterhealthaetna.myplanportal.com 48 2025-07-14 2026-09-29 ok
qa2www.sutterhealthaetna.myplanportal.com 2 2026-01-29 2026-02-23 ok
dev2www.sutterhealthaetna.myplanportal.com 3 2026-04-05 2026-08-12 nxdomain
qa3www.sutterhealthaetna.myplanportal.com 3 2026-01-29 2026-09-22 ok
dev3www.sutterhealthaetna.myplanportal.com 3 2026-04-07 2026-08-10 nxdomain
qa4www.sutterhealthaetna.myplanportal.com 3 2026-04-05 2026-08-12 ok
qawww.sutterhealthaetna.myplanportal.com 22 2025-07-30 2026-09-22 ok
devwww.sutterhealthaetna.myplanportal.com 4 2026-04-05 2026-09-03 nxdomain
health1.texashealthaetna.myplanportal.com 2 2026-05-14 2026-08-25 ok
experience.texashealthaetna.myplanportal.com 17 2025-08-28 2026-09-21 ok
qa2experience.texashealthaetna.myplanportal.com 4 2025-08-28 2026-07-30 ok
dev2experience.texashealthaetna.myplanportal.com 5 2025-08-28 2026-08-06 nxdomain
qa3experience.texashealthaetna.myplanportal.com 12 2025-07-14 2026-08-25 ok
qaexperience.texashealthaetna.myplanportal.com 4 2025-08-28 2026-08-07 ok
devexperience.texashealthaetna.myplanportal.com 4 2025-08-28 2026-07-30 nxdomain
health.texashealthaetna.myplanportal.com 26 2025-07-08 2026-09-29 ok
qa-health.texashealthaetna.myplanportal.com 32 2025-07-08 2026-08-25 ok
www.qa-health.texashealthaetna.myplanportal.com 29 2025-07-08 2026-08-25 ok
stg-health.texashealthaetna.myplanportal.com 3 2025-07-30 2026-07-26 ok
www.stg-health.texashealthaetna.myplanportal.com 3 2025-07-30 2026-07-26 nxdomain
www.health.texashealthaetna.myplanportal.com 20 2025-07-08 2026-09-29 ok
member.texashealthaetna.myplanportal.com 3 2026-05-15 2026-08-12 nxdomain
strmember.texashealthaetna.myplanportal.com 4 2026-04-01 2026-08-14 ok
www.texashealthaetna.myplanportal.com 48 2025-07-14 2026-09-29 ok
qa2www.texashealthaetna.myplanportal.com 2 2026-01-29 2026-02-23 ok
dev2www.texashealthaetna.myplanportal.com 3 2026-04-05 2026-08-12 nxdomain
qa3www.texashealthaetna.myplanportal.com 3 2026-01-29 2026-09-22 ok
dev3www.texashealthaetna.myplanportal.com 3 2026-04-07 2026-08-10 nxdomain
qa4www.texashealthaetna.myplanportal.com 3 2026-04-05 2026-08-12 ok
qawww.texashealthaetna.myplanportal.com 21 2025-07-30 2026-09-22 ok
devwww.texashealthaetna.myplanportal.com 4 2026-04-05 2026-09-03 nxdomain
health1.banneraetna.myplanportal.com 2 2026-05-13 2026-08-25 ok
experience.banneraetna.myplanportal.com 17 2025-08-28 2026-09-21 ok
qaexperience.banneraetna.myplanportal.com 4 2025-08-28 2026-08-07 ok
devexperience.banneraetna.myplanportal.com 4 2025-08-28 2026-07-30 nxdomain
health.banneraetna.myplanportal.com 25 2025-07-08 2026-09-29 ok
qa-health.banneraetna.myplanportal.com 32 2025-07-08 2026-08-25 ok
www.qa-health.banneraetna.myplanportal.com 29 2025-07-08 2026-08-25 ok
stg-health.banneraetna.myplanportal.com 3 2025-07-30 2026-07-26 ok
www.stg-health.banneraetna.myplanportal.com 3 2025-07-30 2026-07-26 nxdomain
www.health.banneraetna.myplanportal.com 19 2025-07-08 2026-09-29 ok
member.banneraetna.myplanportal.com 3 2026-05-15 2026-08-12 nxdomain
health1test.banneraetna.myplanportal.com 2 2026-05-07 2026-08-25 ok
www.banneraetna.myplanportal.com 48 2025-07-14 2026-09-29 ok

Showing the first 100 hostnames — sign in with GitHub or Google to page the full list, or use the API with an API key: GET /v1/hosts/myplanportal.com.

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/myplanportal.com.