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.

26 hosts · 320 ms

HostCertsFirst seenLast seenDNS
gjensidige.no 1 2025-10-03 2025-10-03 ok
test1.gjensidige.no 1 2025-10-10 2025-10-10 nodata
mail.test1.gjensidige.no 1 2025-10-10 2025-10-10 nxdomain
autodiscover.test1.gjensidige.no 1 2025-10-10 2025-10-10 nxdomain
beta.gjensidige.no 1 2025-10-03 2025-10-03 ok
ovelseskjoring.gjensidige.no 6 2026-04-24 2026-08-19 ok
bank.gjensidige.no 1 2025-10-03 2025-10-03 nxdomain
web-ovk.gjensidige.no 1 2026-01-14 2026-01-14 ok
admin-ovk.gjensidige.no 1 2026-01-14 2026-01-14 ok
mail.gjensidige.no 1 2025-10-24 2025-10-24 ok
email.gjensidige.no 1 2025-10-24 2025-10-24 ok
cdn.gjensidige.no 1 2026-04-09 2026-04-09 ok
pensjon.gjensidige.no 1 2026-07-07 2026-07-07 ok
video.gjensidige.no 2 2026-05-24 2026-05-24 ok
desktop.gjensidige.no 1 2025-10-24 2025-10-24 ok
smtp.gjensidige.no 1 2025-10-24 2025-10-24 nxdomain
svar.gjensidige.no 5 2026-04-28 2026-09-01 ok
partner.gjensidige.no 1 2025-10-03 2025-10-03 ok
autodiscover.gjensidige.no 1 2025-10-24 2025-10-24 ok
services.gjensidige.no 1 2025-10-03 2025-10-03 ok
respons.gjensidige.no 1 2025-10-10 2025-10-10 ok
signicat.gjensidige.no 5 2026-05-23 2026-09-21 ok
teliachat.gjensidige.no 1 2025-10-03 2025-10-03 nxdomain
storefront.gjensidige.no 1 2025-10-24 2025-10-24 nxdomain
desktop-test.gjensidige.no 1 2025-10-24 2025-10-24 ok
www.gjensidige.no 1 2025-10-03 2025-10-03 ok

Programmatic access, with DNS A records: API GET /v1/hosts/gjensidige.no (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/gjensidige.no.