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.

21 hosts · 285 ms

HostCertsFirst seenLast seenDNS
libyanspider.com 41 2025-09-10 2026-09-06 ok
*.libyanspider.com 27 2025-09-10 2026-09-06 —
rc.libyanspider.com 2 2026-06-29 2026-06-29 ok
www.rc.libyanspider.com 2 2026-06-29 2026-06-29 nxdomain
helpdesk.libyanspider.com 16 2026-04-17 2026-08-18 ok
mail.libyanspider.com 11 2026-05-18 2026-09-13 ok
nl.libyanspider.com 8 2026-05-18 2026-07-16 nxdomain
m.libyanspider.com 3 2026-04-17 2026-06-12 nxdomain
design.libyanspider.com 10 2026-04-21 2026-08-17 ok
help.libyanspider.com 15 2026-04-22 2026-08-26 ok
www.help.libyanspider.com 17 2026-04-21 2026-08-26 ok
masar.libyanspider.com 11 2026-04-21 2026-06-19 nxdomain
hr.libyanspider.com 8 2026-04-15 2026-08-13 ok
teams.libyanspider.com 13 2026-05-18 2026-09-21 ok
mta-sts.libyanspider.com 4 2026-05-02 2026-09-21 ok
status.libyanspider.com 5 2026-04-27 2026-08-24 ok
dev.libyanspider.com 10 2026-04-21 2026-08-17 ok
www.dev.libyanspider.com 9 2026-04-21 2026-06-19 nxdomain
new.libyanspider.com 12 2026-05-18 2026-09-13 ok
www.libyanspider.com 16 2026-04-22 2026-08-18 ok
my.libyanspider.com 15 2026-04-21 2026-09-28 ok

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