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.

46 hosts · 297 ms

HostCertsFirst seenLast seen
amazon.sg 166 2025-08-27 2026-09-05
opf-kuru-testing006.amazon.sg 5 2025-08-27 2026-07-28
opf-kuru-retesting007.amazon.sg 4 2025-08-28 2026-07-29
opf-kuru-retesting008.amazon.sg 5 2025-09-01 2026-08-02
luna.amazon.sg 3 2025-09-26 2026-07-24
data.amazon.sg 2 2025-09-26 2026-07-21
auxilium-extern-preprod.amazon.sg 3 2025-09-26 2026-07-05
internal-campfire-fe.amazon.sg 4 2025-10-17 2026-07-31
fls-fe.amazon.sg 2 2025-09-03 2026-08-04
atv-ps-fe.amazon.sg 10 2025-08-05 2026-09-29
aax-fe.amazon.sg 13 2025-06-23 2026-07-02
data-exchange.amazon.sg 15 2025-09-22 2026-10-02
gaming.amazon.sg 10 2025-09-23 2026-10-02
advertising.amazon.sg 3 2025-11-04 2026-07-05
twitch.amazon.sg 4 2025-09-23 2026-08-24
unagi.amazon.sg 3 2025-11-04 2026-06-27
a9g-api.amazon.sg 3 2025-09-23 2026-06-23
ramp-api.amazon.sg 1 2026-09-29 2026-09-29
rampapi.amazon.sg 5 2026-03-11 2026-08-07
sellercentral.amazon.sg 8 2025-07-23 2026-09-15
snowcentral.amazon.sg 3 2025-09-26 2026-07-10
dl.amazon.sg 2 2025-09-25 2026-07-21
origin-dl.amazon.sg 2 2025-09-25 2026-07-21
sell.amazon.sg 3 2025-10-17 2026-06-15
affiliate-program.amazon.sg 4 2025-09-12 2026-07-07
auxilium.amazon.sg 4 2025-09-26 2026-07-20
completion.amazon.sg 2 2025-11-06 2026-06-20
dcp.amazon.sg 4 2025-09-23 2026-08-24
edgeflow-dp.aero.04788557e-frontier.amazon.sg 4 2025-10-27 2026-07-18
edgeflow.aero.04788557e-frontier.amazon.sg 4 2025-10-27 2026-07-18
sponsored-ads.amazon.sg 2 2026-02-19 2026-07-22
api-amazondevices.amazon.sg 4 2025-09-23 2026-08-24
services.amazon.sg 4 2025-09-26 2026-07-24
webservices.amazon.sg 6 2025-09-17 2026-10-04
brandservices.amazon.sg 3 2025-10-30 2026-06-18
account-status.amazon.sg 4 2025-09-23 2026-08-24
aeswidget.amazon.sg 3 2025-09-23 2026-08-10
transient.amazon.sg 3 2025-08-22 2026-06-19
*.transient.amazon.sg 3 2025-08-22 2026-06-19
setup-firetv.amazon.sg 4 2026-04-07 2026-09-07
origin-setup-firetv.amazon.sg 2 2026-04-07 2026-08-23
www.amazon.sg 166 2025-08-01 2026-09-05
origin-www.amazon.sg 6 2025-10-27 2026-07-18
spicy.amazon.sg 3 2025-09-23 2026-06-22
brandregistry.amazon.sg 4 2025-09-23 2026-08-24
apx-security.amazon.sg 4 2025-10-17 2026-07-07

Programmatic access: API GET /v1/hosts/amazon.sg (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/amazon.sg.