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.

55 hosts · 412 ms

HostCertsFirst seenLast seenDNS
nordsec.com 27 2026-02-25 2026-09-25 ok
*.nordsec.com 18 2026-02-25 2026-09-13 —
cb-activate.nordsec.com 5 2026-04-29 2026-08-27 ok
us.business-auth.nordsec.com 2 2025-10-21 2026-09-21 nodata
*.us.business-auth.nordsec.com 2 2025-10-21 2026-09-21 —
dev.us.business-auth.nordsec.com 1 2025-06-19 2025-06-19 ok
*.dev.us.business-auth.nordsec.com 1 2025-06-19 2025-06-19 —
eu.business-auth.nordsec.com 1 2025-11-13 2025-11-13 nodata
*.eu.business-auth.nordsec.com 1 2025-11-13 2025-11-13 —
stag.eu.business-auth.nordsec.com 1 2025-11-13 2025-11-13 ok
*.stag.eu.business-auth.nordsec.com 1 2025-11-13 2025-11-13 —
dev.eu.business-auth.nordsec.com 2 2025-06-19 2026-05-20 ok
*.dev.eu.business-auth.nordsec.com 2 2025-06-19 2026-05-20 —
b2b-api.nordsec.com 4 2026-06-19 2026-10-03 ok
cb-api.nordsec.com 5 2026-04-29 2026-08-27 ok
partner-wiremock.nordsec.com 5 2026-06-09 2026-08-08 ok
klarna-internal.nordsec.com 3 2026-07-02 2026-08-31 ok
merchants-cache-internal.nordsec.com 8 2026-04-19 2026-08-17 ok
braze-internal.nordsec.com 8 2026-04-11 2026-08-13 ok
pricing-internal.nordsec.com 7 2026-05-02 2026-09-26 ok
introductory-pricing-internal.nordsec.com 5 2026-05-01 2026-08-29 ok
cybercare-api-internal.nordsec.com 7 2026-05-02 2026-09-26 ok
affiliate-api-internal.nordsec.com 10 2026-05-12 2026-08-21 ok
redirects-api-internal.nordsec.com 9 2026-05-12 2026-09-03 ok
active-directory-api-internal.nordsec.com 7 2026-05-02 2026-09-26 ok
sms-sender-internal.nordsec.com 5 2026-05-22 2026-09-19 ok
campaign-manager-internal.nordsec.com 6 2026-06-01 2026-09-30 ok
cyberprotection-manager-internal.nordsec.com 7 2026-04-25 2026-09-30 ok
bank-account-manager-internal.nordsec.com 4 2026-04-13 2026-08-11 ok
user-account-manager-internal.nordsec.com 5 2026-05-01 2026-08-29 ok
partner-internal.nordsec.com 9 2026-04-16 2026-08-14 ok
preference-center-internal.nordsec.com 5 2026-05-01 2026-08-29 ok
payment-callback-receiver-internal.nordsec.com 2 2026-09-29 2026-09-29 nodata
webhooks-receiver-internal.nordsec.com 5 2026-05-01 2026-08-29 ok
sendgrid-webhooks-distributor-internal.nordsec.com 5 2026-05-01 2026-08-29 ok
recurring-charges-internal.nordsec.com 4 2026-06-06 2026-10-04 ok
configurations-internal.nordsec.com 3 2026-08-19 2026-09-03 ok
incogni-merchant-internal.nordsec.com 6 2026-05-31 2026-09-30 ok
checkout-internal.nordsec.com 5 2026-06-01 2026-09-29 ok
pricing-eu-internal.nordsec.com 7 2026-05-02 2026-09-26 ok
checkout-gateway-internal.nordsec.com 4 2026-06-16 2026-08-20 ok
cb-portal.nordsec.com 5 2026-05-06 2026-09-03 ok
cisionone-email.nordsec.com 5 2026-04-27 2026-08-25 ok
cm.nordsec.com 8 2026-05-06 2026-07-11 ok
bank-account-manager.nordsec.com 5 2026-05-17 2026-09-14 ok
cb-vendor.nordsec.com 5 2026-04-29 2026-08-27 ok
business.nordsec.com 14 2026-05-02 2026-10-03 ok
*.business.nordsec.com 8 2026-05-21 2026-10-02 —
admin.business.nordsec.com 2 2026-06-19 2026-06-19 ok
surveys.nordsec.com 2 2025-06-25 2026-07-13 ok
www.surveys.nordsec.com 2 2025-06-25 2026-07-13 nxdomain
b2b-airflow.nordsec.com 2 2026-05-12 2026-05-12 ok
b2b-api-gateway.nordsec.com 6 2026-04-30 2026-10-03 ok
abby.nordsec.com 9 2026-05-30 2026-09-25 ok
survey.nordsec.com 7 2026-05-31 2026-09-26 ok

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