Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

48 hosts · 257 ms

HostCertsFirst seenLast seen
info2.au-sonpo.co.jp 1 2025-11-12 2025-11-12
info3.au-sonpo.co.jp 4 2025-09-03 2026-09-10
info5.au-sonpo.co.jp 10 2026-04-23 2026-08-20
media.au-sonpo.co.jp 2 2025-08-02 2026-07-01
gitlab.au-sonpo.co.jp 3 2026-06-25 2026-09-24
dc.au-sonpo.co.jp 2 2026-05-07 2026-06-26
maintenance.au-sonpo.co.jp 5 2026-04-10 2026-07-22
bicycle.au-sonpo.co.jp 1 2025-12-29 2025-12-29
toiawase.au-sonpo.co.jp 1 2026-02-10 2026-02-10
webjiko-self.au-sonpo.co.jp 5 2026-04-14 2026-08-25
test-webjiko-self.au-sonpo.co.jp 4 2026-04-05 2026-08-15
app.stg.au-sonpo.co.jp 3 2025-09-11 2026-09-15
www.stg.au-sonpo.co.jp 4 2026-04-17 2026-09-17
plug.au-sonpo.co.jp 1 2026-05-27 2026-05-27
stg.plug.au-sonpo.co.jp 1 2026-05-25 2026-05-25
www.stg.plug.au-sonpo.co.jp 1 2026-05-25 2026-05-25
www.plug.au-sonpo.co.jp 1 2026-05-27 2026-05-27
cb-asahi.au-sonpo.co.jp 1 2025-11-12 2025-11-12
webjiko.au-sonpo.co.jp 4 2025-08-18 2026-08-03
imo.au-sonpo.co.jp 4 2026-04-10 2026-10-01
app.au-sonpo.co.jp 1 2026-06-04 2026-06-04
faq.au-sonpo.co.jp 1 2026-06-25 2026-06-25
gps.au-sonpo.co.jp 2 2025-07-14 2026-07-24
www.gps.au-sonpo.co.jp 2 2025-07-14 2026-07-24
aus.au-sonpo.co.jp 10 2026-05-08 2026-09-03
maintenance.uat.au-sonpo.co.jp 2 2026-03-25 2026-08-25
imo.uat.au-sonpo.co.jp 2 2026-03-25 2026-08-25
www.uat.au-sonpo.co.jp 2 2026-03-25 2026-08-25
pet.au-sonpo.co.jp 1 2025-12-27 2025-12-27
maintenance.nft.au-sonpo.co.jp 3 2026-03-05 2026-08-25
imo.nft.au-sonpo.co.jp 2 2026-03-25 2026-08-25
www.nft.au-sonpo.co.jp 3 2026-03-05 2026-08-25
www.migration-it.au-sonpo.co.jp 2 2026-03-25 2026-08-25
imo.mit.au-sonpo.co.jp 2 2026-03-25 2026-08-25
maintenance.migration-st.au-sonpo.co.jp 4 2026-03-25 2026-09-17
www.migration-st.au-sonpo.co.jp 4 2026-03-25 2026-09-17
imo.st.au-sonpo.co.jp 2 2026-03-25 2026-08-25
www.st.au-sonpo.co.jp 2 2026-03-25 2026-08-25
imo.mst.au-sonpo.co.jp 4 2026-03-25 2026-09-17
www.au-sonpo.co.jp 2 2026-03-05 2026-07-22
cycledx.au-sonpo.co.jp 2 2025-07-01 2026-07-07
stg.cycledx.au-sonpo.co.jp 2 2025-06-26 2026-07-02
www.stg.cycledx.au-sonpo.co.jp 2 2025-06-26 2026-07-02
dev.cycledx.au-sonpo.co.jp 3 2025-07-11 2026-08-06
www.dev.cycledx.au-sonpo.co.jp 3 2025-07-11 2026-08-06
www.cycledx.au-sonpo.co.jp 2 2025-07-01 2026-07-07
entry.au-sonpo.co.jp 2 2025-07-10 2026-07-23
www.entry.au-sonpo.co.jp 1 2026-07-23 2026-07-23

Programmatic access: API GET /v1/hosts/au-sonpo.co.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/au-sonpo.co.jp.