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.

12 hosts · 257 ms

HostCertsFirst seenLast seenDNS
ersteleasing.hr 2 2026-02-05 2026-05-05 ok
*.ersteleasing.hr 1 2026-05-05 2026-05-05 —
edge1.ersteleasing.hr 2 2025-11-11 2025-11-11 ok
edge2.ersteleasing.hr 2 2025-11-11 2025-11-11 ok
edge.ersteleasing.hr 2 2025-11-11 2025-11-11 nxdomain
essl.ersteleasing.hr 1 2025-07-08 2025-07-08 nodata
*.essl.ersteleasing.hr 1 2025-07-08 2025-07-08 —
enterpriseregistration.ersteleasing.hr 1 2026-05-05 2026-05-05 nxdomain
fs.ersteleasing.hr 1 2026-05-05 2026-05-05 ok
*.fs.ersteleasing.hr 1 2026-05-05 2026-05-05 —
certauth.fs.ersteleasing.hr 1 2026-05-05 2026-05-05 nxdomain
www.ersteleasing.hr 1 2026-02-05 2026-02-05 ok

Programmatic access, with DNS A records: API GET /v1/hosts/ersteleasing.hr (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/ersteleasing.hr.