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.

100 hosts (first page) · 243 ms

HostCertsFirst seenLast seen
hex.tech 27 2025-09-01 2026-10-08
*.hex.tech 21 2025-09-01 2026-10-08
staging-1.hex.tech 2 2025-08-04 2026-07-05
support-staging-1.hex.tech 2 2025-08-04 2026-07-05
static.staging-1.hex.tech 2 2026-05-05 2026-10-05
internal.staging-1.hex.tech 2 2025-08-04 2026-07-05
jet2.hex.tech 2 2025-08-04 2026-07-05
support-jet2.hex.tech 2 2025-08-04 2026-07-05
internal.jet2.hex.tech 2 2025-08-04 2026-07-05
nba.hex.tech 2 2025-08-04 2026-07-05
support-nba.hex.tech 2 2025-08-04 2026-07-05
internal.nba.hex.tech 2 2025-08-04 2026-07-05
code-for-america.hex.tech 2 2025-08-04 2026-07-05
support-code-for-america.hex.tech 2 2025-08-04 2026-07-05
internal.code-for-america.hex.tech 2 2025-08-04 2026-07-05
arzeda.hex.tech 1 2025-08-04 2025-08-04
support-arzeda.hex.tech 1 2025-08-04 2025-08-04
internal.arzeda.hex.tech 1 2025-08-04 2025-08-04
dev-infra-babka.hex.tech 2 2025-08-04 2026-07-05
support-dev-infra-babka.hex.tech 2 2025-08-04 2026-07-05
*.dev-infra-babka.hex.tech 2 2025-08-04 2026-07-05
static.dev-infra-babka.hex.tech 2 2026-03-25 2026-08-25
internal.dev-infra-babka.hex.tech 2 2025-08-04 2026-07-05
illumina.hex.tech 1 2025-08-04 2025-08-04
support-illumina.hex.tech 1 2025-08-04 2025-08-04
internal.illumina.hex.tech 1 2025-08-04 2025-08-04
cresta.hex.tech 1 2025-08-04 2025-08-04
support-cresta.hex.tech 1 2025-08-04 2025-08-04
internal.cresta.hex.tech 1 2025-08-04 2025-08-04
lesschwab.hex.tech 2 2025-08-04 2026-07-05
support-lesschwab.hex.tech 2 2025-08-04 2026-07-05
internal.lesschwab.hex.tech 2 2025-08-04 2026-07-05
freddiemac.hex.tech 3 2025-07-17 2026-07-05
support-freddiemac.hex.tech 2 2025-08-04 2026-07-05
internal.freddiemac.hex.tech 3 2025-07-17 2026-07-05
hc.hex.tech 2 2025-08-04 2026-07-05
support-hc.hex.tech 2 2025-08-04 2026-07-05
auth.hc.hex.tech 12 2026-06-09 2026-10-05
internal.hc.hex.tech 2 2025-08-04 2026-07-05
anthropic.hex.tech 3 2025-07-10 2026-07-05
support-anthropic.hex.tech 2 2025-08-04 2026-07-05
internal.anthropic.hex.tech 3 2025-07-10 2026-07-05
doc.hex.tech 1 2026-09-14 2026-09-14
rc.hex.tech 2 2025-08-04 2026-07-05
support-rc.hex.tech 2 2025-08-04 2026-07-05
static.rc.hex.tech 3 2025-10-16 2026-09-16
internal.rc.hex.tech 2 2025-08-04 2026-07-05
sedgwick-embed.hex.tech 3 2025-09-09 2026-08-10
support-sedgwick-embed.hex.tech 3 2025-09-09 2026-08-10
internal.sedgwick-embed.hex.tech 3 2025-09-09 2026-08-10
humanmanaged.hex.tech 1 2025-11-18 2025-11-18
support-humanmanaged.hex.tech 1 2025-11-18 2025-11-18
internal.humanmanaged.hex.tech 1 2025-11-18 2025-11-18
freddiemac-prod.hex.tech 3 2025-07-17 2026-07-05
support-freddiemac-prod.hex.tech 2 2025-08-04 2026-07-05
internal.freddiemac-prod.hex.tech 3 2025-07-17 2026-07-05
pure-insurance.hex.tech 3 2025-09-09 2026-09-03
support-pure-insurance.hex.tech 3 2025-09-09 2026-09-03
internal.pure-insurance.hex.tech 3 2025-09-09 2026-09-03
cadence.hex.tech 1 2026-09-24 2026-09-24
support-cadence.hex.tech 1 2026-09-24 2026-09-24
internal.cadence.hex.tech 1 2026-09-24 2026-09-24
sage.hex.tech 1 2025-08-04 2025-08-04
support-sage.hex.tech 1 2025-08-04 2025-08-04
internal.sage.hex.tech 1 2025-08-04 2025-08-04
eu-hinge.hex.tech 2 2025-08-04 2026-07-05
support-eu-hinge.hex.tech 2 2025-08-04 2026-07-05
internal.eu-hinge.hex.tech 2 2025-08-04 2026-07-05
dev-infra-ceviche.hex.tech 3 2025-08-15 2026-07-19
support-dev-infra-ceviche.hex.tech 3 2025-08-15 2026-07-19
static.dev-infra-ceviche.hex.tech 2 2025-07-01 2026-06-01
internal.dev-infra-ceviche.hex.tech 3 2025-08-15 2026-07-19
chime.hex.tech 2 2025-08-04 2026-07-05
support-chime.hex.tech 2 2025-08-04 2026-07-05
internal.chime.hex.tech 2 2025-08-04 2026-07-05
dev-app-antelope.hex.tech 5 2025-09-02 2026-08-09
support-dev-app-antelope.hex.tech 5 2025-09-02 2026-08-09
static.dev-app-antelope.hex.tech 1 2026-01-02 2026-01-02
internal.dev-app-antelope.hex.tech 5 2025-09-02 2026-08-09
coinbase.hex.tech 2 2025-08-04 2026-07-05
support-coinbase.hex.tech 2 2025-08-04 2026-07-05
internal.coinbase.hex.tech 2 2025-08-04 2026-07-05
workrise.hex.tech 2 2025-08-04 2026-07-05
support-workrise.hex.tech 2 2025-08-04 2026-07-05
internal.workrise.hex.tech 2 2025-08-04 2026-07-05
cruise.hex.tech 2 2025-08-04 2026-07-05
support-cruise.hex.tech 2 2025-08-04 2026-07-05
internal.cruise.hex.tech 2 2025-08-04 2026-07-05
6sense.hex.tech 3 2025-09-09 2026-08-10
support-6sense.hex.tech 3 2025-09-09 2026-08-10
internal.6sense.hex.tech 3 2025-09-09 2026-08-10
deloitte.hex.tech 1 2026-05-27 2026-05-27
support-deloitte.hex.tech 1 2026-05-27 2026-05-27
internal.deloitte.hex.tech 1 2026-05-27 2026-05-27
enlyte.hex.tech 2 2025-08-04 2026-07-05
support-enlyte.hex.tech 2 2025-08-04 2026-07-05
internal.enlyte.hex.tech 2 2025-08-04 2026-07-05
csf.hex.tech 2 2025-08-04 2026-07-05
support-csf.hex.tech 2 2025-08-04 2026-07-05
internal.csf.hex.tech 2 2025-08-04 2026-07-05

Showing the first 100 hostnames — sign in with GitHub or Google to page the full list, or use the API with an API key: GET /v1/hosts/hex.tech.

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/hex.tech.