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.

15 hosts · 248 ms

HostCertsFirst seenLast seenDNS
dorothee-schumacher.com 11 2025-10-01 2026-09-01 ok
*.dorothee-schumacher.com 1 2025-10-01 2025-10-01 —
friendsof.dorothee-schumacher.com 6 2026-05-02 2026-08-28 ok
261-virtual-showroom.dorothee-schumacher.com 8 2026-04-23 2026-08-19 ok
252-virtual-showroom.dorothee-schumacher.com 8 2026-05-07 2026-09-02 ok
262-virtual-showroom.dorothee-schumacher.com 8 2026-04-26 2026-08-23 ok
253-virtual-showroom.dorothee-schumacher.com 10 2026-04-28 2026-08-24 ok
255-virtual-showroom.dorothee-schumacher.com 10 2026-04-18 2026-08-15 ok
etdomain.dorothee-schumacher.com 5 2026-05-26 2026-09-23 ok
b2b-newsletter.dorothee-schumacher.com 5 2026-04-29 2026-08-27 ok
sandbox-newsletter.dorothee-schumacher.com 4 2026-04-21 2026-08-19 ok
pr.dorothee-schumacher.com 8 2026-04-14 2026-08-10 ok
docs.dorothee-schumacher.com 3 2026-05-30 2026-09-03 ok
collection-manuals.dorothee-schumacher.com 11 2026-05-18 2026-09-13 ok
news.dorothee-schumacher.com 4 2026-04-17 2026-08-15 ok

Programmatic access, with DNS A records: API GET /v1/hosts/dorothee-schumacher.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/dorothee-schumacher.com.