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.

8 hosts · 282 ms

Download CSV
HostCertsFirst seenLast seen
avitas.com 10 2025-12-09 2026-09-19
awsbeta.avitas.com 1 2026-04-21 2026-04-21
online.avitas.com 1 2026-04-21 2026-04-21
skyshop.avitas.com 4 2026-06-09 2026-10-07
v3audit.avitas.com 2 2026-07-31 2026-07-31
betadev.avitas.com 1 2026-04-21 2026-04-21
www.avitas.com 9 2026-05-20 2026-09-19
devbox.avitas.com 1 2026-10-14 2026-10-14

Programmatic access: API GET /v1/hosts/avitas.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/avitas.com.