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.

50 hosts · 257 ms

HostCertsFirst seenLast seen
x.ai 75 2026-04-20 2026-10-07
*.x.ai 40 2026-04-20 2026-10-03
typeahead.grok-v2.x.ai 8 2026-05-19 2026-09-14
transcription.grok-v2.x.ai 11 2026-05-20 2026-09-15
status-v2.x.ai 2 2026-10-05 2026-10-05
*.status-v2.x.ai 2 2026-10-05 2026-10-05
app-media.x.ai 12 2026-06-07 2026-10-04
data.x.ai 14 2026-04-13 2026-10-07
images-public.x.ai 12 2026-05-03 2026-08-30
*.voice.x.ai 2 2026-06-08 2026-06-08
sip.staging.voice.x.ai 3 2026-06-10 2026-08-31
sip.voice.x.ai 3 2026-06-09 2026-08-31
jf.x.ai 1 2026-01-11 2026-01-11
files-cdn-staging.x.ai 6 2026-05-18 2026-05-18
sso-auth.x.ai 10 2026-04-24 2026-08-20
staging-cm-api.x.ai 5 2026-06-01 2026-09-29
*.api.x.ai 13 2026-06-09 2026-10-05
us-east-1.api.x.ai 8 2026-04-17 2026-08-13
us-west-1.api.x.ai 23 2026-04-15 2026-08-20
c.email.api.x.ai 2 2026-08-12 2026-08-12
click.c.email.api.x.ai 5 2026-08-05 2026-10-03
click.email.api.x.ai 5 2026-08-05 2026-10-03
ap-northeast-1-cm.api.x.ai 4 2026-04-15 2026-08-13
us-east-4-cm.api.x.ai 5 2026-04-30 2026-08-28
cloud9-cm.api.x.ai 20 2026-04-15 2026-08-20
research-models-cm.api.x.ai 4 2026-04-15 2026-08-13
research-vendors-cm.api.x.ai 4 2026-04-15 2026-08-13
us-south-1-pltr.api.x.ai 11 2026-04-28 2026-08-27
us-east-1-raw.api.x.ai 9 2026-04-15 2026-08-27
us-west-1-raw.api.x.ai 20 2026-04-15 2026-08-17
us-saltlake-2-raw.api.x.ai 56 2026-04-26 2026-10-01
us-east-4-raw.api.x.ai 16 2026-04-15 2026-08-13
us-east-4-comfyui-raw.api.x.ai 4 2026-04-15 2026-08-13
max-raw.api.x.ai 24 2026-04-16 2026-09-29
links.email.x.ai 2 2026-10-07 2026-10-07
files-cdn.x.ai 9 2026-05-26 2026-09-21
vidgen.x.ai 11 2026-06-01 2026-09-27
imgen.x.ai 11 2026-06-04 2026-09-30
sso.x.ai 8 2026-04-24 2026-08-21
shop.x.ai 13 2026-05-18 2026-09-28
*.corp.x.ai 8 2026-05-15 2026-09-10
slack.hooks.x.ai 16 2026-04-16 2026-09-27
webhooks.hooks.x.ai 7 2026-08-01 2026-10-05
status.x.ai 12 2026-04-23 2026-10-05
*.status.x.ai 4 2026-10-05 2026-10-05
deferred-chat.x.ai 6 2026-04-19 2026-08-15
eevidence-uat.x.ai 1 2026-09-22 2026-09-22
asia-south1.livekit.x.ai 7 2026-04-15 2026-10-01
trust.x.ai 8 2026-04-28 2026-08-25
api-raw.x.ai 9 2026-04-15 2026-08-27

Programmatic access: API GET /v1/hosts/x.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/x.ai.