Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

5 hosts · 266 ms

Download CSV
HostCertsFirst seenLast seen
zalando-lounge.co.uk 6 2025-11-30 2026-09-30
*.zalando-lounge.co.uk 5 2025-11-30 2026-09-30
help.zalando-lounge.co.uk 8 2025-11-30 2026-09-30
analytics.zalando-lounge.co.uk 4 2026-05-31 2026-10-10
www.zalando-lounge.co.uk 8 2025-11-30 2026-09-30

Programmatic access: API GET /v1/hosts/zalando-lounge.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/zalando-lounge.co.uk.