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.

10 hosts · 321 ms

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HostCertsFirst seenLast seen
enefit.pl 17 2026-05-21 2026-09-22
*.enefit.pl 17 2026-05-21 2026-09-22
charge.enefit.pl 11 2026-06-04 2026-10-01
public-docs.enefit.pl 12 2026-06-11 2026-10-07
cat.enefit.pl 4 2026-05-19 2026-09-08
zaplac.ev.enefit.pl 5 2026-05-25 2026-09-22
api.ev.enefit.pl 5 2026-05-25 2026-09-22
terminal.ev.enefit.pl 5 2026-05-25 2026-09-22
panel.ev.enefit.pl 5 2026-05-25 2026-09-22
www.enefit.pl 8 2026-05-07 2026-09-02

Programmatic access: API GET /v1/hosts/enefit.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/enefit.pl.