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.

53 hosts · 458 ms

HostCertsFirst seenLast seenDNS
riteaid.com 26 2026-02-18 2026-10-02 ok
*.riteaid.com 20 2026-02-19 2026-10-02 —
data.ajopharmabeta.riteaid.com 2 2025-08-26 2025-08-26 nxdomain
sms.ajopharmabeta.riteaid.com 2 2025-09-25 2025-09-25 nxdomain
exchwa.riteaid.com 2 2025-07-09 2026-02-20 nxdomain
exchrpc.riteaid.com 2 2025-07-09 2026-02-20 ok
sys400c.itc.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
sys400d.itc.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
portal.store.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
exchstore.riteaid.com 2 2025-07-09 2026-02-20 nxdomain
secure.riteaid.com 10 2026-05-01 2026-08-27 ok
nexpose.riteaid.com 1 2026-02-19 2026-02-19 nxdomain
exch.riteaid.com 2 2025-07-09 2026-02-20 ok
data.myhealth.riteaid.com 2 2025-07-27 2025-07-27 nxdomain
auth.riteaid.com 2 2026-02-18 2026-02-19 ok
guestwifi.riteaid.com 1 2026-02-19 2026-02-19 nxdomain
cyberark.riteaid.com 2 2026-02-19 2026-02-23 nxdomain
guestportal.riteaid.com 1 2026-02-19 2026-02-19 nxdomain
payroll.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
raadmin.riteaid.com 1 2026-02-19 2026-02-19 nxdomain
confirmation.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
m.confirmation.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
res.confirmation.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
t.confirmation.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
exchbio.riteaid.com 2 2025-07-09 2026-02-20 ok
sendto.riteaid.com 6 2026-05-01 2026-08-27 ok
photo.riteaid.com 2 2026-02-18 2026-02-19 ok
smtp.riteaid.com 2 2025-07-09 2026-02-20 nxdomain
photocar.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
autodiscover.riteaid.com 2 2025-07-09 2026-02-20 ok
your.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
m.your.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
res.your.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
t.your.riteaid.com 2 2026-02-18 2026-02-19 nxdomain
smetrics.riteaid.com 2 2025-08-08 2025-08-08 nxdomain
data.pharmacyservices.riteaid.com 2 2025-09-02 2025-09-02 nxdomain
sms.riteaid.com 2 2025-10-09 2025-10-09 ok
locations.riteaid.com 5 2026-05-16 2026-09-14 ok
click-wellness.riteaid.com 1 2026-04-21 2026-04-21 nxdomain
*.wellness.riteaid.com 10 2026-04-21 2026-08-17 —
click.wellness.riteaid.com 4 2026-04-21 2026-08-20 ok
data.appointments.riteaid.com 2 2025-10-02 2025-10-02 nxdomain
ews.riteaid.com 2 2025-07-09 2026-02-20 nxdomain
data.connect.riteaid.com 2 2026-05-10 2026-05-10 ok
content.riteaid.com 5 2026-05-16 2026-09-14 ok
carcontent.riteaid.com 5 2026-05-16 2026-09-14 ok
exchcert.riteaid.com 2 2025-07-09 2026-02-20 ok
riteaidu.riteaid.com 2 2026-02-18 2026-02-19 ok
auth-dev.riteaid.com 2 2026-02-18 2026-02-19 ok
www.riteaid.com 1 2026-02-19 2026-02-19 ok
gateway.riteaid.com 5 2026-05-23 2026-09-20 ok
exchlegacy.riteaid.com 2 2025-07-09 2026-02-20 ok
verify.riteaid.com 3 2025-10-20 2026-09-20 ok

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