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.

100 hosts (first page) · 348 ms

HostCertsFirst seenLast seenDNS
abc.net.au 20 2025-09-24 2026-09-28 ok
*.abc.net.au 20 2025-09-24 2026-09-28 —
classic100.abc.net.au 3 2026-05-03 2026-08-20 ok
jazz100.abc.net.au 5 2026-04-24 2026-10-02 ok
*.c0.abc.net.au 19 2025-09-24 2026-09-23 —
*.ad.c0.abc.net.au 1 2025-11-17 2025-11-17 —
airflow-v2-prod.ad.c0.abc.net.au 1 2025-07-17 2025-07-17 nxdomain
*.audience-mms-processor-prod.c0.abc.net.au 1 2026-06-02 2026-06-02 —
cdn.audience-mms-processor-prod.c0.abc.net.au 1 2026-08-24 2026-08-24 ok
*.ltv-prod.c0.abc.net.au 1 2026-01-22 2026-01-22 —
*.pe.c0.abc.net.au 1 2025-11-08 2025-11-08 —
*.es-staging.c0.abc.net.au 2 2025-11-17 2026-07-29 —
*.di.c0.abc.net.au 2 2025-06-12 2026-05-13 —
*.wamm.c0.abc.net.au 2 2025-06-12 2026-05-13 —
*.abc046n.c0.abc.net.au 1 2026-01-29 2026-01-29 —
*.abc048n.c0.abc.net.au 1 2026-01-29 2026-01-29 —
*.abc045p.c0.abc.net.au 1 2026-01-29 2026-01-29 —
*.dp.c0.abc.net.au 2 2025-07-30 2026-06-30 —
*.ad-np.c0.abc.net.au 1 2025-11-17 2025-11-17 —
airflow-v2-nonp.ad-np.c0.abc.net.au 1 2025-07-17 2025-07-17 nxdomain
*.pe-np.c0.abc.net.au 2 2025-06-12 2026-05-13 —
*.di-np.c0.abc.net.au 1 2026-05-08 2026-05-08 —
*.il-np.c0.abc.net.au 2 2025-07-02 2026-06-02 —
*.wamm-np.c0.abc.net.au 2 2025-06-12 2026-05-13 —
*.dp-np.c0.abc.net.au 2 2025-07-30 2026-06-30 —
*.es-np.c0.abc.net.au 4 2025-09-13 2026-08-14 —
wcms-np.c0.abc.net.au 2 2025-08-04 2026-07-04 nxdomain
*.wcms-np.c0.abc.net.au 2 2025-08-04 2026-07-04 —
*.network-platforms-np.c0.abc.net.au 3 2026-04-22 2026-09-22 —
*.recommendations-np.c0.abc.net.au 3 2025-09-03 2025-09-03 —
recommendations-admin-api.recommendations-np.c0.abc.net.au 1 2025-12-15 2025-12-15 nxdomain
recommendations-api.recommendations-np.c0.abc.net.au 2 2025-12-15 2025-12-15 nxdomain
rex-msk-nonprod-ui.recommendations-np.c0.abc.net.au 1 2025-12-15 2025-12-15 nxdomain
*.photos-np.c0.abc.net.au 4 2026-08-21 2026-08-21 —
coda.photos-np.c0.abc.net.au 1 2026-01-12 2026-01-12 nxdomain
elastic-coda.photos-np.c0.abc.net.au 1 2026-01-12 2026-01-12 nxdomain
api-coda.photos-np.c0.abc.net.au 1 2026-01-12 2026-01-12 nxdomain
*.ss-np.c0.abc.net.au 1 2026-05-07 2026-05-07 —
*.content-np.c0.abc.net.au 1 2026-02-13 2026-02-13 —
recommendations-admin-api.rex-np.c0.abc.net.au 4 2026-01-29 2026-08-12 ok
recommendations-api.rex-np.c0.abc.net.au 9 2026-01-23 2026-08-11 ok
rex-risingwave-nonprod-ui.rex-np.c0.abc.net.au 4 2026-03-16 2026-08-16 ok
rex-msk-nonprod-ui.rex-np.c0.abc.net.au 2 2026-01-29 2026-07-13 ok
recommendations-admin-api-secondary.rex-np.c0.abc.net.au 2 2026-08-12 2026-08-12 nxdomain
recommendations-api-secondary.rex-np.c0.abc.net.au 2 2026-08-11 2026-08-11 nxdomain
recommendations-admin-api-primary.rex-np.c0.abc.net.au 2 2026-08-12 2026-08-12 nxdomain
recommendations-api-primary.rex-np.c0.abc.net.au 2 2026-08-11 2026-08-11 nxdomain
*.sandbox-np.c0.abc.net.au 15 2026-07-29 2026-07-29 —
*.audience-mms-processor-nonp.c0.abc.net.au 1 2026-06-02 2026-06-02 —
cdn.audience-mms-processor-nonp.c0.abc.net.au 1 2026-08-24 2026-08-24 ok
*.es.c0.abc.net.au 3 2025-12-06 2026-08-12 —
wcms.c0.abc.net.au 2 2025-08-02 2026-07-02 nxdomain
*.wcms.c0.abc.net.au 2 2025-08-02 2026-07-02 —
*.network-platforms.c0.abc.net.au 2 2026-04-22 2026-09-22 —
*.photos.c0.abc.net.au 1 2026-09-01 2026-09-01 —
coda.photos.c0.abc.net.au 1 2026-01-12 2026-01-12 nxdomain
elastic-coda.photos.c0.abc.net.au 1 2026-01-12 2026-01-12 nxdomain
api-coda.photos.c0.abc.net.au 1 2026-01-12 2026-01-12 nxdomain
*.ss.c0.abc.net.au 1 2026-05-07 2026-05-07 —
bamboo.ss.c0.abc.net.au 18 2025-09-24 2026-09-23 ok
bitbucket.ss.c0.abc.net.au 18 2025-09-24 2026-09-23 ok
*.ltv-uat.c0.abc.net.au 1 2026-01-15 2026-01-15 —
*.content.c0.abc.net.au 1 2026-02-13 2026-02-13 —
*.photos-st.c0.abc.net.au 2 2026-08-30 2026-08-30 —
coda.photos-st.c0.abc.net.au 1 2026-01-12 2026-01-12 nxdomain
elastic-coda.photos-st.c0.abc.net.au 1 2026-01-12 2026-01-12 nxdomain
api-coda.photos-st.c0.abc.net.au 1 2026-01-12 2026-01-12 nxdomain
*.content-st.c0.abc.net.au 1 2026-02-13 2026-02-13 —
*.sandbox-st.c0.abc.net.au 12 2026-07-29 2026-07-29 —
*.recommendations-nptest.c0.abc.net.au 1 2025-09-05 2025-09-05 —
recommendations-admin-api.recommendations-nptest.c0.abc.net.au 5 2025-10-09 2025-12-15 nxdomain
recommendations-api.recommendations-nptest.c0.abc.net.au 3 2025-10-08 2025-12-15 nxdomain
rex-msk-nonprod-ui.recommendations-nptest.c0.abc.net.au 3 2025-09-24 2025-12-15 nxdomain
rex-superset.recommendations-nptest.c0.abc.net.au 3 2025-09-15 2025-11-21 nxdomain
*.sandbox-dv.c0.abc.net.au 6 2026-07-29 2026-07-29 —
*.ltv-dev.c0.abc.net.au 2 2025-08-26 2026-07-27 —
rex-msk-ui-prod-blue.rex.c0.abc.net.au 2 2026-07-02 2026-09-28 ok
recommendations-admin-api-blue.rex.c0.abc.net.au 2 2026-07-03 2026-09-29 ok
recommendations-api-blue.rex.c0.abc.net.au 3 2026-07-03 2026-09-29 ok
recommendations-admin-api.rex.c0.abc.net.au 1 2026-01-20 2026-01-20 nxdomain
recommendations-api.rex.c0.abc.net.au 3 2026-01-19 2026-01-20 nxdomain
rex-msk-prod-ui.rex.c0.abc.net.au 3 2026-01-19 2026-03-18 nxdomain
rex-msk-ui-prod-green.rex.c0.abc.net.au 1 2026-07-28 2026-07-28 ok
recommendations-admin-api-green.rex.c0.abc.net.au 3 2026-08-04 2026-08-05 ok
recommendations-api-green.rex.c0.abc.net.au 2 2026-08-04 2026-08-05 ok
recommendations-admin-api-secondary.rex.c0.abc.net.au 3 2026-07-03 2026-09-29 ok
recommendations-admon-api-secondary.rex.c0.abc.net.au 1 2026-08-05 2026-08-05 nxdomain
recommendations-api-secondary.rex.c0.abc.net.au 2 2026-08-05 2026-09-29 ok
recommendations-admin-api-primary.rex.c0.abc.net.au 3 2026-08-05 2026-09-29 ok
recommendations-api-primary.rex.c0.abc.net.au 2 2026-08-05 2026-09-29 ok
*.es-standby.c0.abc.net.au 2 2026-08-12 2026-08-12 —
*.c1.abc.net.au 19 2025-09-24 2026-09-23 —
network-orchestration.aws-poc.c1.abc.net.au 1 2026-07-30 2026-07-30 nodata
*.ss.c1.abc.net.au 1 2025-11-19 2025-11-19 —
sbc1.abc.net.au 2 2026-04-09 2026-04-19 ok
www.sbc1.abc.net.au 2 2026-04-09 2026-04-19 nxdomain
*.c2.abc.net.au 19 2025-09-24 2026-09-23 —
*.ss-np.c2.abc.net.au 1 2025-11-19 2025-11-19 —
sbc2.abc.net.au 1 2026-05-03 2026-05-03 ok
streaming.c3.abc.net.au 18 2025-09-24 2026-09-23 ok

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/abc.net.au.

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/abc.net.au.