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.

52 hosts · 388 ms

HostCertsFirst seenLast seenDNS
oceanreef.com 14 2025-07-28 2026-09-25 ok
*.oceanreef.com 6 2025-07-28 2026-09-25 —
agysspa.oceanreef.com 1 2025-10-14 2025-10-14 nxdomain
www.agysspa.oceanreef.com 1 2025-10-14 2025-10-14 nxdomain
agysversa.oceanreef.com 2 2026-08-27 2026-08-27 nxdomain
www.agysversa.oceanreef.com 2 2026-08-27 2026-08-27 nxdomain
apib4tversa.oceanreef.com 1 2026-09-01 2026-09-01 ok
www.apib4tversa.oceanreef.com 1 2026-09-01 2026-09-01 nxdomain
xmweb.oceanreef.com 1 2026-05-20 2026-05-20 ok
www.xmweb.oceanreef.com 1 2026-05-20 2026-05-20 nxdomain
agyseatec.oceanreef.com 2 2025-08-06 2026-08-06 nxdomain
www.agyseatec.oceanreef.com 2 2025-08-06 2026-08-06 nxdomain
upload.oceanreef.com 4 2025-08-06 2026-08-14 nxdomain
www.upload.oceanreef.com 4 2025-08-06 2026-08-14 nxdomain
online-app-form-stage.oceanreef.com 4 2026-02-20 2026-10-04 ok
book4time.oceanreef.com 2 2026-05-09 2026-07-22 ok
www.book4time.oceanreef.com 2 2026-05-09 2026-07-22 nxdomain
datamagine.oceanreef.com 4 2025-07-11 2026-09-21 nxdomain
www.datamagine.oceanreef.com 4 2025-07-11 2026-09-21 nxdomain
agysreserve.oceanreef.com 1 2026-05-01 2026-05-01 nxdomain
www.agysreserve.oceanreef.com 1 2026-05-01 2026-05-01 nxdomain
orcig.oceanreef.com 2 2025-07-10 2026-07-10 ok
www.orcig.oceanreef.com 2 2025-07-10 2026-07-10 nxdomain
agysbooking.oceanreef.com 1 2025-07-29 2025-07-29 nxdomain
www.agysbooking.oceanreef.com 1 2025-07-29 2025-07-29 nxdomain
engageapi.oceanreef.com 1 2025-10-24 2025-10-24 ok
www.engageapi.oceanreef.com 1 2025-10-24 2025-10-24 nxdomain
itservicedesk.oceanreef.com 10 2026-04-20 2026-08-16 ok
agysretail.oceanreef.com 3 2025-07-28 2026-07-24 nxdomain
www.agysretail.oceanreef.com 3 2025-07-28 2026-07-24 nxdomain
app-form.oceanreef.com 3 2026-02-20 2026-10-05 ok
online-app-form.oceanreef.com 4 2026-02-20 2026-10-05 ok
vpn.oceanreef.com 1 2026-03-12 2026-03-12 ok
www.vpn.oceanreef.com 1 2026-03-12 2026-03-12 nxdomain
agysmembership.oceanreef.com 2 2025-07-11 2026-07-11 ok
www.agysmembership.oceanreef.com 2 2025-07-11 2026-07-11 nxdomain
qr.oceanreef.com 7 2026-07-29 2026-09-26 ok
orcassociateimages.oceanreef.com 2 2026-06-30 2026-09-08 ok
www.orcassociateimages.oceanreef.com 2 2026-06-30 2026-09-08 nxdomain
agysforms.oceanreef.com 1 2025-10-23 2025-10-23 ok
www.agysforms.oceanreef.com 1 2025-10-23 2025-10-23 nxdomain
clubmerchants.oceanreef.com 2 2025-10-16 2026-09-29 ok
www.clubmerchants.oceanreef.com 2 2025-10-16 2026-09-29 nxdomain
events.oceanreef.com 1 2026-04-14 2026-04-14 ok
www.events.oceanreef.com 1 2026-04-14 2026-04-14 nxdomain
www.oceanreef.com 8 2026-04-30 2026-09-10 ok
versapasskey.oceanreef.com 1 2026-09-10 2026-09-10 ok
www.versapasskey.oceanreef.com 1 2026-09-10 2026-09-10 nxdomain
orcpasskey.oceanreef.com 2 2025-07-10 2026-07-10 ok
www.orcpasskey.oceanreef.com 2 2025-07-10 2026-07-10 nxdomain
orcigproxy.oceanreef.com 1 2025-09-17 2025-09-17 ok
www.orcigproxy.oceanreef.com 1 2025-09-17 2025-09-17 nxdomain

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