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.

30 hosts · 252 ms

HostCertsFirst seenLast seen
gog.com 27 2025-08-25 2026-09-18
*.gog.com 27 2025-08-25 2026-09-18
email2.gog.com 5 2026-04-29 2026-09-20
multimedia.email2.gog.com 5 2026-04-29 2026-09-20
www.email2.gog.com 5 2026-04-29 2026-09-20
pages-gitlab.gog.com 6 2026-05-17 2026-10-04
*.pages-gitlab.gog.com 6 2026-05-17 2026-10-04
poligon-lb.gog.com 5 2026-05-07 2026-09-23
lake.gog.com 4 2026-05-24 2026-08-02
*.lake.gog.com 4 2026-05-24 2026-08-02
nifi.gog.com 5 2026-05-17 2026-10-04
*.nifi.gog.com 5 2026-05-17 2026-10-04
promo-tool.gog.com 3 2026-04-21 2026-07-18
backoffice-mdm.gog.com 5 2026-05-17 2026-10-04
*.backoffice-mdm.gog.com 5 2026-05-17 2026-10-04
lp.gog.com 3 2026-05-31 2026-08-09
*.lp.gog.com 3 2026-05-31 2026-08-09
k8s.gog.com 4 2026-05-24 2026-08-02
*.k8s.gog.com 4 2026-05-24 2026-08-02
gks.gog.com 5 2026-04-26 2026-09-13
*.gks.gog.com 5 2026-04-26 2026-09-13
vitess.gog.com 5 2026-05-17 2026-10-04
*.vitess.gog.com 5 2026-05-17 2026-10-04
support.gog.com 5 2026-05-24 2026-09-21
k8s-dev.gog.com 6 2026-05-17 2026-10-04
*.k8s-dev.gog.com 6 2026-05-17 2026-10-04
cdn-hw.gog.com 4 2026-05-24 2026-08-02
*.cdn-hw.gog.com 4 2026-05-24 2026-08-02
nifi-registry.gog.com 5 2026-05-17 2026-10-04
*.nifi-registry.gog.com 5 2026-05-17 2026-10-04

Programmatic access: API GET /v1/hosts/gog.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/gog.com.