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.

25 hosts · 303 ms

HostCertsFirst seenLast seenDNS
brand.ai 37 2026-05-06 2026-10-02 ok
*.brand.ai 11 2026-05-06 2026-09-24 —
media.brand.ai 7 2026-08-03 2026-10-01 ok
*.media.brand.ai 7 2026-08-03 2026-10-01 —
staging.brand.ai 5 2026-05-30 2026-09-30 ok
media-staging.brand.ai 7 2026-08-03 2026-10-01 ok
*.media-staging.brand.ai 7 2026-08-03 2026-10-01 —
website-staging.brand.ai 4 2026-06-04 2026-10-05 ok
feedback.brand.ai 1 2026-08-17 2026-08-17 ok
clerk.brand.ai 7 2026-05-24 2026-09-19 ok
app.brand.ai 4 2026-04-17 2026-08-18 ok
atlas.brand.ai 4 2026-06-15 2026-08-13 ok
*.atlas.brand.ai 4 2026-06-15 2026-08-13 —
updates.brand.ai 3 2026-05-27 2026-09-11 ok
prs.brand.ai 6 2026-07-07 2026-09-04 ok
access.brand.ai 2 2026-02-08 2026-02-08 ok
accounts.brand.ai 13 2026-05-24 2026-09-20 ok
status.brand.ai 4 2026-04-16 2026-08-17 ok
trust.brand.ai 8 2026-04-29 2026-08-26 ok
media-preview.brand.ai 2 2026-08-03 2026-08-03 nxdomain
*.media-preview.brand.ai 2 2026-08-03 2026-08-03 —
www.brand.ai 5 2026-05-25 2026-09-25 ok
my.brand.ai 11 2026-05-25 2026-09-21 ok
factory.brand.ai 3 2026-07-28 2026-09-25 ok
preview-proxy.brand.ai 4 2026-04-15 2026-08-16 ok

Programmatic access, with DNS A records: API GET /v1/hosts/brand.ai (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/brand.ai.