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.

32 hosts · 427 ms

HostCertsFirst seenLast seenDNS
aaasj.com 10 2026-05-09 2026-09-14 ok
*.aaasj.com 10 2026-05-09 2026-09-14 —
vhreports01.aaasj.com 2 2026-03-20 2026-10-01 nxdomain
www.vhreports01.aaasj.com 2 2026-03-20 2026-10-01 nxdomain
dc1.aaasj.com 1 2026-02-27 2026-02-27 nxdomain
www.dc1.aaasj.com 1 2026-02-27 2026-02-27 nxdomain
dc2.aaasj.com 1 2026-02-27 2026-02-27 nxdomain
www.dc2.aaasj.com 1 2026-02-27 2026-02-27 nxdomain
vpn2.aaasj.com 1 2025-11-26 2025-11-26 nxdomain
www.vpn2.aaasj.com 1 2025-11-26 2025-11-26 nxdomain
webpos-prod.aaasj.com 1 2025-12-11 2025-12-11 ok
www.webpos-prod.aaasj.com 1 2025-12-11 2025-12-11 nxdomain
vpn.aaasj.com 1 2026-01-26 2026-01-26 nxdomain
www.vpn.aaasj.com 1 2026-01-26 2026-01-26 nxdomain
wmvpn.aaasj.com 2 2025-08-05 2025-09-06 nxdomain
www.wmvpn.aaasj.com 2 2025-08-05 2025-09-06 nxdomain
desktop.aaasj.com 1 2025-08-16 2025-08-16 nxdomain
www.desktop.aaasj.com 1 2025-08-16 2025-08-16 nxdomain
wmdesktop.aaasj.com 1 2025-08-05 2025-08-05 nxdomain
www.wmdesktop.aaasj.com 1 2025-08-05 2025-08-05 nxdomain
automator.aaasj.com 2 2025-09-26 2025-11-26 nxdomain
www.automator.aaasj.com 2 2025-09-26 2025-11-26 nxdomain
eopr.aaasj.com 2 2025-11-17 2025-11-17 ok
www.eopr.aaasj.com 2 2025-11-17 2025-11-17 nxdomain
sts.aaasj.com 1 2026-04-03 2026-04-03 nxdomain
www.sts.aaasj.com 1 2026-04-03 2026-04-03 nxdomain
webpos-test.aaasj.com 4 2025-08-05 2026-09-10 ok
www.webpos-test.aaasj.com 4 2025-08-05 2026-09-10 nxdomain
vhrelay.aaasj.com 1 2026-06-04 2026-06-04 nxdomain
www.vhrelay.aaasj.com 1 2026-06-04 2026-06-04 nxdomain
vhapiproxy.aaasj.com 1 2025-08-05 2025-08-05 nxdomain
www.vhapiproxy.aaasj.com 1 2025-08-05 2025-08-05 nxdomain

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