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.

41 hosts · 400 ms

HostCertsFirst seenLast seenDNS
expeditions.com 23 2025-11-26 2026-09-02 ok
*.expeditions.com 14 2025-11-26 2026-09-02 —
360.expeditions.com 13 2026-05-29 2026-09-25 ok
url6041.expeditions.com 9 2026-05-29 2026-09-24 ok
stg2019.expeditions.com 8 2026-05-15 2026-09-10 ok
world.stg2019.expeditions.com 8 2026-05-15 2026-09-10 ok
uk.stg2019.expeditions.com 6 2026-05-15 2026-09-10 ok
au.stg2019.expeditions.com 8 2026-05-15 2026-09-10 ok
dev2019.expeditions.com 8 2026-05-15 2026-09-10 nodata
world.dev2019.expeditions.com 8 2026-05-15 2026-09-10 ok
uk.dev2019.expeditions.com 8 2026-05-15 2026-09-10 ok
au.dev2019.expeditions.com 8 2026-05-15 2026-09-10 ok
static.expeditions.com 10 2026-04-25 2026-08-21 ok
m.world.expeditions.com 1 2025-12-17 2025-12-17 nxdomain
www.m.world.expeditions.com 1 2025-12-17 2025-12-17 nxdomain
*.prd.expeditions.com 6 2026-07-24 2026-09-21 —
e.expeditions.com 1 2025-12-14 2025-12-14 nxdomain
www.e.expeditions.com 1 2025-12-14 2025-12-14 nxdomain
creative.expeditions.com 1 2026-02-16 2026-02-16 ok
www.creative.expeditions.com 1 2026-02-16 2026-02-16 nxdomain
account-staging.expeditions.com 10 2026-04-30 2026-08-27 ok
hyatt.staging.expeditions.com 7 2026-05-26 2026-09-21 nxdomain
*.stg.expeditions.com 6 2026-07-24 2026-09-21 —
mi.expeditions.com 1 2025-12-30 2025-12-30 ok
nj.expeditions.com 1 2026-05-23 2026-05-23 ok
www.nj.expeditions.com 1 2026-05-23 2026-05-23 nxdomain
emails.expeditions.com 1 2026-02-11 2026-02-11 ok
click.emails.expeditions.com 10 2026-04-21 2026-08-17 ok
partners.expeditions.com 10 2026-01-05 2026-09-05 ok
investors.expeditions.com 16 2026-05-28 2026-09-23 ok
press.expeditions.com 5 2026-05-28 2026-09-27 ok
media.press.expeditions.com 13 2026-05-08 2026-09-27 ok
cms.press.expeditions.com 13 2026-05-08 2026-09-27 ok
content.press.expeditions.com 13 2026-05-08 2026-09-28 ok
aws.expeditions.com 12 2026-04-21 2026-08-17 nxdomain
world.aws.expeditions.com 12 2026-04-21 2026-08-17 nxdomain
uk.aws.expeditions.com 10 2026-04-21 2026-08-17 nxdomain
au.aws.expeditions.com 12 2026-04-21 2026-08-17 nxdomain
account.expeditions.com 10 2026-04-30 2026-08-27 ok
account-dev.expeditions.com 6 2026-07-17 2026-09-15 ok
hyatt.dev.expeditions.com 7 2026-05-26 2026-09-21 ok

Programmatic access, with DNS A records: API GET /v1/hosts/expeditions.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/expeditions.com.