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.

76 hosts · 302 ms

HostCertsFirst seenLast seenDNS
wowow.co.jp 8 2025-11-06 2026-09-30 ok
*.wowow.co.jp 10 2025-09-30 2026-09-30 —
wism-stg1.wowow.co.jp 3 2025-10-21 2026-09-21 ok
*.wism-stg1.wowow.co.jp 3 2025-10-21 2026-09-21 —
blog2.wowow.co.jp 2 2025-12-12 2026-08-17 ok
www.blog2.wowow.co.jp 1 2025-12-12 2025-12-12 nxdomain
wism-stg2.wowow.co.jp 2 2025-10-21 2026-09-21 ok
*.wism-stg2.wowow.co.jp 2 2025-10-21 2026-09-21 —
dept-stg2.wowow.co.jp 3 2026-07-06 2026-09-04 ok
wand-gitlab.wowow.co.jp 3 2026-05-15 2026-09-01 ok
wccorp-web.wowow.co.jp 2 2026-02-26 2026-07-14 ok
wecorp-web.wowow.co.jp 1 2026-01-31 2026-01-31 ok
wpcorp-web.wowow.co.jp 2 2026-02-26 2026-07-14 ok
wwcorp-web.wowow.co.jp 1 2026-01-31 2026-01-31 ok
wod.wowow.co.jp 3 2025-10-21 2026-09-30 ok
www.wod.wowow.co.jp 3 2025-10-21 2026-09-30 nxdomain
wowpedia-prd.wowow.co.jp 2 2026-09-04 2026-09-04 nodata
*.wowpedia-prd.wowow.co.jp 2 2026-09-04 2026-09-04 —
wol-prd.wowow.co.jp 3 2026-09-04 2026-09-04 nodata
*.wol-prd.wowow.co.jp 3 2026-09-04 2026-09-04 —
www.wol-prd.wowow.co.jp 1 2026-09-04 2026-09-04 nxdomain
corporate.wowow.co.jp 2 2025-11-06 2026-08-17 ok
www.corporate.wowow.co.jp 1 2025-11-06 2025-11-06 nxdomain
note.wowow.co.jp 3 2026-05-16 2026-09-07 ok
marketing.wowow.co.jp 1 2025-07-28 2025-07-28 nxdomain
wowpedia-stg.wowow.co.jp 2 2026-06-11 2026-06-11 nodata
*.wowpedia-stg.wowow.co.jp 2 2026-06-11 2026-06-11 —
jo-streaksvod-stg.wowow.co.jp 1 2026-09-09 2026-09-09 ok
jo-streakslive-stg.wowow.co.jp 1 2026-09-09 2026-09-09 ok
wol-stg.wowow.co.jp 3 2026-06-11 2026-07-31 nodata
*.wol-stg.wowow.co.jp 3 2026-06-11 2026-07-31 —
cdn-stg.wol-stg.wowow.co.jp 1 2026-08-25 2026-08-25 ok
www-stg.wol-stg.wowow.co.jp 1 2026-07-27 2026-07-27 ok
cdn-stg.wowow.co.jp 5 2026-05-25 2026-09-22 ok
jo-wodbs4kstreaks-stg.wowow.co.jp 1 2026-09-09 2026-09-09 ok
dept-stg.wowow.co.jp 15 2026-04-15 2026-09-26 ok
www-stg.wowow.co.jp 1 2026-08-17 2026-08-17 ok
auth.wowow.co.jp 1 2026-02-04 2026-02-04 ok
www.auth.wowow.co.jp 1 2026-02-04 2026-02-04 nxdomain
mi.wowow.co.jp 1 2026-01-14 2026-01-14 ok
ask.wowow.co.jp 2 2026-03-16 2026-03-16 nxdomain
ask.ml.wowow.co.jp 2 2026-03-25 2026-08-25 ok
wism.wowow.co.jp 2 2025-10-21 2026-09-21 ok
*.wism.wowow.co.jp 2 2025-10-21 2026-09-21 —
cdn.wowow.co.jp 5 2026-04-23 2026-08-21 ok
affitown.wowow.co.jp 1 2026-04-23 2026-04-23 ok
q.wowow.co.jp 1 2026-02-04 2026-02-04 ok
www.q.wowow.co.jp 1 2026-02-04 2026-02-04 nxdomain
eq.wowow.co.jp 2 2025-09-09 2026-09-11 ok
www.eq.wowow.co.jp 1 2025-09-09 2025-09-09 nxdomain
corporate-cms.wowow.co.jp 2 2026-02-26 2026-07-14 ok
business.wowow.co.jp 5 2026-05-14 2026-09-11 ok
news.wowow.co.jp 7 2026-02-12 2026-09-11 ok
www.news.wowow.co.jp 1 2026-02-12 2026-02-12 nxdomain
recruit.wowow.co.jp 1 2025-11-06 2025-11-06 ok
www.recruit.wowow.co.jp 1 2025-11-06 2025-11-06 nxdomain
dept.wowow.co.jp 15 2026-04-11 2026-09-22 ok
support.wowow.co.jp 1 2026-01-21 2026-01-21 ok
fukuju.wowow.co.jp 1 2025-09-02 2025-09-02 nxdomain
adebisu.wowow.co.jp 2 2025-09-11 2026-08-11 ok
wowpedia-dev.wowow.co.jp 2 2026-05-29 2026-05-29 ok
*.wowpedia-dev.wowow.co.jp 1 2026-05-29 2026-05-29 —
jo-streaksvod-dev.wowow.co.jp 1 2026-09-09 2026-09-09 ok
corporate-dev.wowow.co.jp 1 2026-02-01 2026-02-01 ok
jo-streakslive-dev.wowow.co.jp 1 2026-09-09 2026-09-09 ok
wol-dev.wowow.co.jp 3 2026-05-29 2026-08-03 ok
*.wol-dev.wowow.co.jp 2 2026-05-29 2026-08-03 —
cdn-dev.wol-dev.wowow.co.jp 1 2026-08-25 2026-08-25 ok
www-dev.wol-dev.wowow.co.jp 1 2026-07-27 2026-07-27 ok
cdn-dev.wowow.co.jp 5 2026-05-25 2026-09-22 ok
corporate-cms-dev.wowow.co.jp 2 2026-02-26 2026-07-14 ok
catv.wowow.co.jp 1 2025-10-02 2025-10-02 ok
www.catv.wowow.co.jp 1 2025-10-02 2025-10-02 nxdomain
www.wowow.co.jp 1 2025-11-06 2025-11-06 ok
my.wowow.co.jp 3 2026-03-09 2026-09-14 ok
www.my.wowow.co.jp 2 2026-03-09 2026-03-09 nxdomain

Programmatic access, with DNS A records: API GET /v1/hosts/wowow.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/wowow.co.jp.