Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

25 hosts · 252 ms

HostCertsFirst seenLast seenDNS
westlotto.com 2 2025-09-30 2026-09-02 ok
mfa.westlotto.com 2 2025-07-09 2026-06-29 nxdomain
jira.westlotto.com 1 2025-10-17 2025-10-17 ok
www.jira.westlotto.com 1 2025-10-17 2025-10-17 nxdomain
testjira.westlotto.com 1 2026-01-22 2026-01-22 ok
www.testjira.westlotto.com 1 2026-01-22 2026-01-22 nxdomain
karriere.westlotto.com 2 2025-09-30 2026-09-02 ok
test.karriere.westlotto.com 2 2025-10-17 2026-09-02 ok
picture.westlotto.com 1 2025-10-17 2025-10-17 ok
ergebnisse.westlotto.com 2 2025-09-30 2026-09-02 ok
test.ergebnisse.westlotto.com 2 2025-10-17 2026-09-02 ok
antrag.westlotto.com 2 2025-09-30 2026-09-02 ok
xrm.westlotto.com 2 2025-07-09 2026-06-29 ok
testxrm.westlotto.com 2 2025-07-09 2026-06-15 ok
unternehmen.westlotto.com 2 2025-09-30 2026-09-02 ok
test.unternehmen.westlotto.com 2 2025-10-17 2026-09-02 ok
wlauto.westlotto.com 2 2025-10-17 2026-01-05 ok
dsgvo.westlotto.com 2 2025-09-30 2026-09-02 nxdomain
wlresults.westlotto.com 2 2025-09-30 2026-09-02 ok
incidents.westlotto.com 2 2025-07-09 2026-06-29 ok
testincidents.westlotto.com 2 2025-07-09 2026-06-15 ok
mta-sts.westlotto.com 2 2025-09-30 2026-09-02 ok
test.westlotto.com 2 2025-10-17 2026-09-02 ok
blockarchiv.westlotto.com 1 2025-10-17 2025-10-17 ok
www.westlotto.com 2 2025-09-30 2026-09-02 ok

Programmatic access, with DNS A records: API GET /v1/hosts/westlotto.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/westlotto.com.