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.

14 hosts · 295 ms

HostCertsFirst seenLast seen
ifolor.at 5 2026-05-20 2026-09-19
fotowettbewerb.ifolor.at 5 2026-05-22 2026-09-19
service.ifolor.at 6 2026-05-06 2026-09-02
order.ifolor.at 4 2025-08-18 2026-10-04
testorder.ifolor.at 8 2026-04-14 2026-09-20
s1-devorder.ifolor.at 6 2026-06-19 2026-09-04
s2-devorder.ifolor.at 6 2026-06-19 2026-09-04
s3-devorder.ifolor.at 6 2026-06-19 2026-09-04
s4-devorder.ifolor.at 6 2026-06-19 2026-09-04
s5-devorder.ifolor.at 6 2026-06-19 2026-09-04
news.ifolor.at 6 2026-05-06 2026-09-01
www-test.ifolor.at 5 2026-06-06 2026-10-04
www-dev.ifolor.at 5 2026-04-27 2026-08-26
www.ifolor.at 6 2025-08-12 2026-10-02

Programmatic access: API GET /v1/hosts/ifolor.at (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/ifolor.at.