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.

90 hosts · 350 ms

HostCertsFirst seenLast seenDNS
nanaco-net.jp 1 2026-01-19 2026-01-19 ok
gg20.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
gg21.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
eg1.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
gg22.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
cg2.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
pg2.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
omni.test2.nanaco-net.jp 2 2025-07-01 2026-07-02 nxdomain
eg1.dev2.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
fb.dev2.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
apl.dev2.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
mp.dev2.nanaco-net.jp 1 2026-01-13 2026-01-13 ok
spapp.dev2.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
www.dev2.nanaco-net.jp 2 2026-01-09 2026-01-13 ok
gg23.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
apl.dev3.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
mp.dev3.nanaco-net.jp 1 2026-01-13 2026-01-13 ok
spapp.dev3.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
sst.dev3.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
www.dev3.nanaco-net.jp 2 2026-01-09 2026-01-13 ok
gg24.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
www.dev4.nanaco-net.jp 2 2026-01-09 2026-01-13 ok
cg5.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
apl.dev5.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
mp.dev5.nanaco-net.jp 1 2026-01-13 2026-01-13 ok
spapp.dev5.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
www.dev5.nanaco-net.jp 2 2026-01-09 2026-01-13 ok
apl.dev6.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
mp.dev6.nanaco-net.jp 1 2026-01-13 2026-01-13 ok
spapp.dev6.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
www.dev6.nanaco-net.jp 2 2026-01-09 2026-01-13 ok
mp.dev7.nanaco-net.jp 1 2026-01-13 2026-01-13 ok
www.dev8.nanaco-net.jp 2 2026-01-09 2026-01-13 ok
fb.nanaco-net.jp 1 2026-02-26 2026-02-26 ok
ag.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
ig.nanaco-net.jp 1 2026-01-19 2026-01-19 nxdomain
jg.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
pg.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
qg.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
omni.nanaco-net.jp 2 2025-07-01 2026-07-02 nxdomain
api.nanaco-net.jp 2 2025-09-24 2026-08-25 ok
fb.dk.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
mp.dk.nanaco-net.jp 1 2026-01-13 2026-01-13 ok
spapp.dk.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
sst.dk.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
www.dk.nanaco-net.jp 1 2026-01-13 2026-01-13 ok
sorry.dk.nanaco-net.jp 2 2026-01-09 2026-01-13 ok
dev.pointmall.nanaco-net.jp 2 2026-05-18 2026-05-18 ok
*.dev.pointmall.nanaco-net.jp 2 2026-05-18 2026-05-18 —
apl.nanaco-net.jp 1 2026-01-19 2026-01-19 ok
mp.nanaco-net.jp 1 2026-01-16 2026-01-16 ok
spapp.nanaco-net.jp 1 2026-01-19 2026-01-19 ok
cg2dr.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
pg2dr.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
cg5dr.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
pgdr.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
cg1s.nanaco-net.jp 1 2026-01-16 2026-01-16 nxdomain
entry.test.nanaco-net.jp 2 2026-01-13 2026-01-30 ok
apientry.test.nanaco-net.jp 2 2025-08-07 2026-07-03 ok
sst.nanaco-net.jp 1 2026-01-19 2026-01-19 ok
dev.nanaco-net.jp 1 2026-01-13 2026-01-13 ok
gg20.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
gg21.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
eg1.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
gg22.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
cg2.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
pg2.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
gg23.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
gg24.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
cg5.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
fb.dev.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
ag.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
ig.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
jg.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
pg.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
qg.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
apl.dev.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
mp.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 ok
spapp.dev.nanaco-net.jp 1 2026-01-09 2026-01-09 ok
cg2dr.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
pg2dr.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
cg5dr.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
pgdr.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
cg1s.dev.nanaco-net.jp 1 2026-01-13 2026-01-13 nxdomain
www.dev.nanaco-net.jp 2 2026-01-09 2026-01-13 ok
sorry.dev.nanaco-net.jp 2 2026-01-09 2026-01-13 ok
www.nanaco-net.jp 2 2026-01-19 2026-01-19 ok
sorry.nanaco-net.jp 2 2026-01-19 2026-01-19 ok
entry.nanaco-net.jp 2 2026-01-19 2026-01-30 ok
apientry.nanaco-net.jp 2 2025-10-06 2026-07-03 ok

Programmatic access, with DNS A records: API GET /v1/hosts/nanaco-net.jp (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/nanaco-net.jp.