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.

29 hosts · 307 ms

HostCertsFirst seenLast seenDNS
fidelity.com.cn 2 2026-05-27 2026-05-27 ok
psa-dgd-iss-prd01.fidelity.com.cn 1 2025-11-24 2025-11-24 nxdomain
psa-bjd-iss-prd01.fidelity.com.cn 1 2025-11-24 2025-11-24 nxdomain
psa-dgd-lic-prd02.fidelity.com.cn 1 2025-11-24 2025-11-24 nxdomain
cec.fidelity.com.cn 2 2025-12-15 2025-12-16 ok
rsg.cec.fidelity.com.cn 3 2025-09-22 2026-09-11 ok
rsg-yingmi.cec.fidelity.com.cn 2 2025-09-22 2026-09-11 ok
rpc.fidelity.com.cn 2 2026-07-13 2026-07-13 nxdomain
sb-access-edge.fidelity.com.cn 1 2026-04-24 2026-04-24 ok
weavemobile.fidelity.com.cn 1 2025-09-29 2025-09-29 nxdomain
weavermobile.fidelity.com.cn 3 2025-09-30 2026-09-15 ok
sb-lync-webconf.fidelity.com.cn 1 2026-04-24 2026-04-24 ok
mail-dgg.fidelity.com.cn 3 2025-07-16 2026-07-07 nxdomain
autodiscover-dgg.fidelity.com.cn 3 2025-07-16 2026-07-07 nxdomain
oos-dgg.fidelity.com.cn 3 2025-07-16 2026-07-07 nxdomain
mail.fidelity.com.cn 3 2025-07-16 2026-07-07 ok
scrm.fidelity.com.cn 1 2026-05-20 2026-05-20 ok
vpn.fidelity.com.cn 4 2025-08-14 2026-08-12 nxdomain
amcvpn.fidelity.com.cn 1 2025-11-24 2025-11-24 ok
voip.fidelity.com.cn 2 2026-04-08 2026-04-08 ok
sip.fidelity.com.cn 1 2026-04-24 2026-04-24 ok
autodiscover.fidelity.com.cn 3 2025-07-16 2026-07-07 ok
mail-bjs.fidelity.com.cn 3 2025-07-16 2026-07-07 nxdomain
autodiscover-bjs.fidelity.com.cn 3 2025-07-16 2026-07-07 nxdomain
oos-bjs.fidelity.com.cn 3 2025-07-16 2026-07-07 nxdomain
oos.fidelity.com.cn 3 2025-07-16 2026-07-07 nxdomain
preview.fidelity.com.cn 3 2026-04-04 2026-09-16 ok
www.fidelity.com.cn 3 2025-12-15 2026-05-27 ok
apigateway.fidelity.com.cn 1 2025-10-28 2025-10-28 ok

Programmatic access, with DNS A records: API GET /v1/hosts/fidelity.com.cn (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/fidelity.com.cn.