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.

9 hosts · 351 ms

HostCertsFirst seenLast seenDNS
nakedwines.co.uk 15 2026-01-07 2026-09-19 ok
*.nakedwines.co.uk 15 2026-01-07 2026-09-19 —
i.nakedwines.co.uk 3 2026-05-08 2026-08-22 ok
track.nakedwines.co.uk 12 2026-05-14 2026-09-09 ok
giftcards.nakedwines.co.uk 23 2025-06-08 2026-09-11 ok
*.giftcards.nakedwines.co.uk 21 2026-07-13 2026-09-11 —
www.giftcards.nakedwines.co.uk 2 2025-06-08 2025-08-12 nxdomain
emails.nakedwines.co.uk 2 2025-06-19 2025-06-26 ok
tickets.nakedwines.co.uk 10 2026-05-09 2026-09-05 ok

Programmatic access, with DNS A records: API GET /v1/hosts/nakedwines.co.uk (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/nakedwines.co.uk.