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.

20 hosts · 271 ms

HostCertsFirst seenLast seenDNS
londonuw.com 5 2026-05-05 2026-09-22 ok
luwagents1.londonuw.com 3 2026-05-17 2026-09-02 ok
form.appointed.londonuw.com 3 2026-05-13 2026-09-01 ok
dashboard.londonuw.com 5 2026-04-21 2026-09-28 ok
autoinvoice.londonuw.com 1 2026-09-24 2026-09-24 ok
callback.londonuw.com 3 2026-05-14 2026-08-31 ok
click.londonuw.com 10 2026-05-19 2026-09-16 ok
login.londonuw.com 4 2026-04-27 2026-08-20 ok
vpn.londonuw.com 4 2026-04-12 2026-08-10 ok
help.londonuw.com 10 2026-06-02 2026-09-30 ok
links.londonuw.com 1 2026-08-27 2026-08-27 ok
forms.londonuw.com 10 2026-05-10 2026-09-07 ok
sms.londonuw.com 1 2026-08-19 2026-08-19 ok
access.londonuw.com 10 2026-04-24 2026-08-21 ok
stag.statements.londonuw.com 3 2026-05-06 2026-08-24 ok
payment.londonuw.com 3 2026-05-17 2026-09-04 ok
widgetslu.londonuw.com 1 2026-09-07 2026-09-07 ok
www.londonuw.com 5 2026-05-05 2026-09-22 ok
survey.londonuw.com 10 2026-05-31 2026-09-28 ok
quartz.londonuw.com 30 2026-04-28 2026-09-30 ok

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