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.

20 hosts · 376 ms

HostCertsFirst seenLast seenDNS
eventkingdom.com 2 2025-07-11 2026-07-16 ok
*.eventkingdom.com 2 2025-07-11 2026-07-16 —
barmenia.eventkingdom.com 1 2025-11-28 2025-11-28 ok
www.barmenia.eventkingdom.com 1 2025-11-28 2025-11-28 ok
badenova.eventkingdom.com 2 2026-08-28 2026-08-28 ok
www.badenova.eventkingdom.com 2 2026-08-28 2026-08-28 ok
seating.eventkingdom.com 8 2026-06-23 2026-08-21 ok
blog.eventkingdom.com 3 2026-04-22 2026-08-24 ok
www.blog.eventkingdom.com 3 2026-04-22 2026-08-24 servfail
herberthenzler.eventkingdom.com 1 2026-09-29 2026-09-29 ok
www.herberthenzler.eventkingdom.com 1 2026-09-29 2026-09-29 ok
cards.eventkingdom.com 1 2026-04-17 2026-04-17 ok
www.cards.eventkingdom.com 1 2026-04-17 2026-04-17 ok
dvv-vhs.eventkingdom.com 1 2025-11-07 2025-11-07 ok
www.dvv-vhs.eventkingdom.com 1 2025-11-07 2025-11-07 ok
status.eventkingdom.com 5 2026-04-27 2026-08-28 ok
letsencrypt.eventkingdom.com 1 2026-09-24 2026-09-24 ok
www.letsencrypt.eventkingdom.com 1 2026-09-24 2026-09-24 ok
test.eventkingdom.com 1 2025-10-14 2025-10-14 ok
www.test.eventkingdom.com 1 2025-10-14 2025-10-14 ok

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