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.

7 hosts · 203 ms

HostCertsFirst seenLast seen
hexe.com.pl 9 2026-04-09 2026-09-22
*.hexe.com.pl 9 2026-04-09 2026-09-22
zgloszenia.hexe.com.pl 5 2026-06-06 2026-10-03
sma.hexe.com.pl 4 2026-04-20 2026-09-27
data.hexe.com.pl 5 2026-05-15 2026-09-12
click.hexe.com.pl 9 2026-05-01 2026-08-30
go.hexe.com.pl 5 2026-05-20 2026-10-05

Programmatic access: API GET /v1/hosts/hexe.com.pl (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/hexe.com.pl.