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.

13 hosts · 368 ms

HostCertsFirst seenLast seenDNS
fightingirish.com 5 2026-05-25 2026-10-02 ok
dashboard.fightingirish.com 2 2026-08-03 2026-10-02 ok
img.fightingirish.com 6 2026-06-11 2026-08-20 ok
api.fightingirish.com 3 2026-08-03 2026-10-02 ok
clk.fightingirish.com 5 2026-05-26 2026-08-04 ok
shop.fightingirish.com 5 2026-04-24 2026-08-08 ok
app.fightingirish.com 5 2026-05-26 2026-08-04 ok
stats.fightingirish.com 2 2026-08-03 2026-10-02 ok
redirects.fightingirish.com 2 2026-08-03 2026-10-02 ok
t.fightingirish.com 5 2026-05-26 2026-08-04 ok
www.fightingirish.com 5 2026-05-25 2026-10-02 ok
pay.fightingirish.com 4 2026-03-05 2026-08-21 nxdomain
www.pay.fightingirish.com 4 2026-03-05 2026-08-21 nxdomain

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