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.

22 hosts · 249 ms

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HostCertsFirst seenLast seen
energia.ee 19 2026-04-23 2026-10-04
*.energia.ee 19 2026-04-23 2026-10-04
h120.energia.ee 4 2025-09-19 2026-08-24
www.h120.energia.ee 4 2025-09-19 2026-08-24
www41.energia.ee 4 2026-06-03 2026-10-03
testwww41.energia.ee 4 2026-06-07 2026-10-07
test-www8.energia.ee 4 2026-06-09 2026-10-09
uuringud.energia.ee 3 2026-05-18 2026-08-17
teamdash.energia.ee 4 2026-06-10 2026-10-08
avp.energia.ee 11 2025-08-27 2026-08-10
www.avp.energia.ee 11 2025-08-27 2026-08-10
public-docs.energia.ee 8 2026-05-07 2026-09-02
archibus.energia.ee 5 2026-04-25 2026-08-25
energiatarkus.energia.ee 5 2026-05-06 2026-09-03
cat.energia.ee 4 2026-05-22 2026-09-06
public-docs-test.energia.ee 9 2026-05-06 2026-09-01
uuringudtest.energia.ee 3 2026-06-09 2026-08-09
elvisid-dev.energia.ee 5 2026-05-29 2026-09-27
elvis-dev.energia.ee 5 2026-05-29 2026-09-27
www5gdev.energia.ee 3 2026-04-21 2026-06-21
ux.energia.ee 3 2026-06-19 2026-08-19
notesfreebusy.energia.ee 5 2026-05-19 2026-09-07

Programmatic access: API GET /v1/hosts/energia.ee (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/energia.ee.