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.

17 hosts · 280 ms

HostCertsFirst seenLast seenDNS
encyro.com 3 2025-10-06 2025-10-08 ok
*.encyro.com 2 2025-10-17 2026-09-17 —
alpha-dev2.encyro.com 2 2025-09-26 2026-08-27 ok
apibeta.encyro.com 1 2026-02-22 2026-02-22 ok
addin365-b.encyro.com 3 2026-04-20 2026-09-20 ok
linkref.encyro.com 2 2026-03-18 2026-08-18 ok
auth.encyro.com 3 2025-10-17 2026-09-16 ok
devauth.encyro.com 3 2025-10-14 2026-09-13 ok
api.encyro.com 1 2026-02-21 2026-02-21 ok
partner.encyro.com 2 2026-04-14 2026-09-14 ok
apps.encyro.com 1 2025-11-06 2025-11-06 ok
alpha-dev.encyro.com 2 2025-09-08 2026-08-09 ok
url9991.no-reply-dev.encyro.com 3 2026-03-17 2026-08-17 ok
apigwdev.encyro.com 3 2026-02-13 2026-08-26 ok
www.encyro.com 3 2025-10-06 2025-10-08 ok
linkdev.sandbox.encyro.com 3 2026-03-17 2026-08-17 ok
url7202.no-reply.encyro.com 2 2026-03-18 2026-08-18 ok

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