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.

8 hosts · 334 ms

HostCertsFirst seenLast seenDNS
*.europeantourgroup.com 5 2026-05-31 2026-09-28 —
techtraining.europeantourgroup.com 3 2026-05-12 2026-08-30 ok
playerportal.europeantourgroup.com 3 2026-02-22 2026-10-07 ok
*.playerportal.europeantourgroup.com 2 2026-02-22 2026-07-10 —
gms.europeantourgroup.com 2 2025-08-26 2026-07-27 ok
mta-sts.europeantourgroup.com 2 2025-06-17 2026-05-18 ok
guests.europeantourgroup.com 2 2025-08-26 2026-07-27 ok
websocket.europeantourgroup.com 5 2026-05-04 2026-09-01 ok

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