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.

6 hosts · 193 ms

HostCertsFirst seenLast seen
iwoca.de 5 2025-11-22 2026-09-23
*.iwoca.de 5 2025-11-22 2026-09-23
citi.fintech.iwoca.de 5 2025-11-14 2026-08-15
mta-sts.iwoca.de 1 2025-12-03 2025-12-03
webflow.iwoca.de 11 2026-05-18 2026-09-14
ebay.iwoca.de 2 2026-04-16 2026-10-01

Programmatic access: API GET /v1/hosts/iwoca.de (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/iwoca.de.