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.

38 hosts · 329 ms

HostCertsFirst seenLast seenDNS
character.ai 73 2026-04-10 2026-10-04 ok
*.character.ai 30 2026-04-20 2026-09-26 —
web-prod.character.ai 12 2026-04-10 2026-10-04 nxdomain
client-prod.character.ai 4 2026-08-01 2026-09-29 ok
*.client-prod.character.ai 4 2026-08-01 2026-09-29 —
share.character.ai 14 2026-06-02 2026-09-28 ok
proof.character.ai 1 2026-05-25 2026-05-25 ok
blog.character.ai 6 2026-06-19 2026-09-27 ok
auth.character.ai 5 2026-05-19 2026-09-15 ok
api.character.ai 8 2026-04-20 2026-08-16 nodata
*.api.character.ai 8 2026-04-20 2026-08-16 —
book.character.ai 12 2026-05-22 2026-09-17 ok
storybook.character.ai 4 2026-06-07 2026-10-05 ok
links.email.character.ai 11 2026-04-12 2026-10-06 ok
join.character.ai 5 2026-05-13 2026-09-15 ok
cdn.neo.character.ai 7 2026-05-25 2026-09-20 ok
updater.character.ai 11 2026-04-30 2026-08-26 ok
*.updater.character.ai 11 2026-04-30 2026-08-26 —
rpauxr.character.ai 5 2026-05-05 2026-09-05 ok
docs.character.ai 9 2026-05-19 2026-09-14 ok
client-ads.character.ai 6 2026-08-03 2026-10-01 ok
*.client-ads.character.ai 6 2026-08-03 2026-10-01 —
policies.character.ai 13 2026-04-12 2026-10-06 ok
data-apps.character.ai 5 2026-04-28 2026-10-04 ok
codepush-assets.character.ai 6 2026-05-20 2026-09-15 ok
updater-assets.character.ai 6 2026-04-30 2026-08-26 ok
experts.character.ai 11 2026-04-28 2026-08-25 ok
status.character.ai 5 2026-05-12 2026-09-08 ok
links.chat.character.ai 7 2026-06-01 2026-09-27 ok
links.account.character.ai 7 2026-06-01 2026-09-27 ok
databot.character.ai 4 2026-07-21 2026-09-13 ok
support.character.ai 5 2026-05-02 2026-08-30 ok
prod-next.character.ai 8 2026-04-19 2026-06-17 ok
client-dev.character.ai 6 2026-07-29 2026-09-26 ok
*.client-dev.character.ai 6 2026-07-29 2026-09-26 —
pay.character.ai 8 2026-04-23 2026-08-19 ok
client-canary.character.ai 4 2026-08-01 2026-09-29 ok
*.client-canary.character.ai 4 2026-08-01 2026-09-29 —

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