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.

40 hosts · 386 ms

HostCertsFirst seenLast seenDNS
nigelwright.com 10 2026-05-20 2026-09-16 ok
devtunnel2.nigelwright.com 10 2026-05-31 2026-08-29 ok
index-sf87256.nigelwright.com 9 2026-05-20 2026-09-16 ok
tika.nigelwright.com 2 2026-07-06 2026-07-06 nxdomain
static.nigelwright.com 11 2026-05-20 2026-09-15 ok
manage.nigelwright.com 8 2026-05-04 2026-08-31 ok
mnemosyne.nigelwright.com 5 2026-06-03 2026-06-03 nxdomain
remote.nigelwright.com 9 2026-05-19 2026-09-15 ok
holding.nigelwright.com 10 2026-05-13 2026-09-08 ok
pki.nigelwright.com 13 2026-05-20 2026-09-15 ok
helpdesk.nigelwright.com 20 2026-06-01 2026-08-27 ok
portal--partial.nigelwright.com 10 2026-04-30 2026-08-27 ok
admin--partial.nigelwright.com 8 2026-05-07 2026-09-02 ok
www--partial.nigelwright.com 10 2026-05-08 2026-09-03 ok
portal.nigelwright.com 8 2026-05-15 2026-09-10 ok
devtunnel.nigelwright.com 8 2026-05-31 2026-08-29 ok
fstorm.nigelwright.com 8 2026-07-09 2026-09-07 ok
login.nigelwright.com 8 2026-05-10 2026-09-05 ok
iam.login.nigelwright.com 10 2026-05-10 2026-09-06 ok
admin.nigelwright.com 13 2026-05-21 2026-09-16 ok
go.nigelwright.com 10 2026-05-21 2026-09-16 ok
anubis.nigelwright.com 11 2026-05-25 2026-09-21 ok
test.anubis.nigelwright.com 8 2026-05-05 2026-08-31 ok
apis.nigelwright.com 10 2026-05-28 2026-08-28 ok
syncpreferences.apis.nigelwright.com 10 2026-05-28 2026-08-28 ok
contacts.apis.nigelwright.com 10 2026-05-28 2026-08-28 ok
timesheet.nigelwright.com 10 2026-05-20 2026-09-15 ok
test.nigelwright.com 2 2026-07-15 2026-07-15 nxdomain
timesheet-test.nigelwright.com 8 2026-06-29 2026-09-21 ok
manage-dev.nigelwright.com 10 2026-05-05 2026-09-01 ok
holding-dev.nigelwright.com 8 2026-05-12 2026-09-07 ok
fstorm-dev.nigelwright.com 8 2026-06-18 2026-09-07 ok
login-dev.nigelwright.com 8 2026-05-02 2026-08-28 ok
iam.login-dev.nigelwright.com 8 2026-05-02 2026-08-28 ok
apis-dev.nigelwright.com 6 2026-04-22 2026-08-18 ok
syncpreferences.apis-dev.nigelwright.com 10 2026-04-22 2026-08-19 ok
contacts.apis-dev.nigelwright.com 10 2026-04-22 2026-08-18 ok
www.nigelwright.com 9 2026-05-20 2026-09-16 ok
try.nigelwright.com 8 2026-04-24 2026-08-20 ok
security.nigelwright.com 2 2026-08-25 2026-08-25 ok

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