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.

22 hosts · 365 ms

HostCertsFirst seenLast seenDNS
firstpointresources.com 36 2026-05-18 2026-10-04 ok
*.firstpointresources.com 20 2026-05-19 2026-10-04 —
imishandlerdev46.firstpointresources.com 5 2026-04-24 2026-08-22 ok
coc.firstpointresources.com 5 2026-04-24 2026-08-22 ok
helpdesk.firstpointresources.com 12 2026-05-21 2026-09-17 ok
url2720.contact.firstpoinresources.com.firstpointresources.com 8 2026-05-19 2026-09-14 nxdomain
59752884.contact.firstpoinresources.com.firstpointresources.com 8 2026-05-19 2026-09-14 nxdomain
info.firstpointresources.com 10 2026-05-19 2026-09-15 ok
qr.firstpointresources.com 2 2026-08-13 2026-08-13 nxdomain
contact.firstpointresources.com 10 2026-05-19 2026-09-14 ok
url2720.contact.firstpointresources.com 2 2026-05-19 2026-05-19 nxdomain
em2472.contact.firstpointresources.com 2 2026-05-20 2026-05-20 nodata
url2914.contact.firstpointresources.com 2 2026-05-19 2026-05-19 nxdomain
59752884.contact.firstpointresources.com 3 2026-05-19 2026-05-19 ok
o1.ptr3755.contact.firstpointresources.com 4 2026-05-19 2026-05-19 ok
url6158.contact.firstpointresources.com 8 2026-05-19 2026-09-14 ok
kasmtest.firstpointresources.com 5 2026-04-27 2026-08-25 ok
imishandlerdev.firstpointresources.com 5 2026-05-25 2026-09-22 ok
www.firstpointresources.com 18 2026-05-17 2026-09-12 ok
pay.firstpointresources.com 13 2026-05-04 2026-09-01 ok
www.pay.firstpointresources.com 2 2026-08-12 2026-08-12 ok
verify.firstpointresources.com 2 2025-07-17 2026-06-17 ok

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