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 · 286 ms

HostCertsFirst seenLast seenDNS
thehundred.com 3 2025-08-07 2026-08-20 ok
*.thehundred.com 3 2025-08-07 2026-08-20 —
mi.thehundred.com 1 2026-02-12 2026-02-12 ok
sso.thehundred.com 1 2025-11-04 2025-11-04 ok
www.sso.thehundred.com 1 2025-11-04 2025-11-04 nxdomain
shop.thehundred.com 12 2026-02-07 2026-07-08 ok
www.shop.thehundred.com 1 2026-02-07 2026-02-07 nxdomain
ar.thehundred.com 1 2025-12-09 2025-12-09 ok
20-ball-predictor.thehundred.com 1 2026-02-04 2026-02-04 ok
matches.thehundred.com 1 2026-02-18 2026-02-18 ok
photos.thehundred.com 2 2026-02-25 2026-07-13 nodata
faqs.thehundred.com 5 2026-05-26 2026-09-23 ok
tickets.thehundred.com 6 2026-01-10 2026-08-21 ok
www.tickets.thehundred.com 1 2026-01-10 2026-01-10 nxdomain
mta-sts.thehundred.com 1 2026-01-11 2026-01-11 ok
myaccount.thehundred.com 2 2025-12-05 2026-05-25 ok
www.myaccount.thehundred.com 1 2025-12-05 2025-12-05 nxdomain
sso-test.thehundred.com 1 2025-11-23 2025-11-23 ok
www.sso-test.thehundred.com 1 2025-11-23 2025-11-23 nxdomain
myaccount-test.thehundred.com 1 2026-05-26 2026-05-26 ok
www.thehundred.com 2 2025-09-25 2026-08-25 ok
fantasy.thehundred.com 1 2026-07-07 2026-07-07 ok

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