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.

10 hosts · 299 ms

HostCertsFirst seenLast seenDNS
wcs-care.co.uk 7 2026-05-16 2026-08-07 ok
staging.wcs-care.co.uk 1 2026-08-18 2026-08-18 ok
www.staging.wcs-care.co.uk 1 2026-08-18 2026-08-18 ok
webdisk.wcs-care.co.uk 4 2026-05-19 2026-07-19 ok
cpanel.wcs-care.co.uk 4 2026-05-19 2026-07-19 ok
mail.wcs-care.co.uk 4 2026-05-19 2026-07-19 ok
cpcalendars.wcs-care.co.uk 4 2026-05-19 2026-07-19 ok
cpcontacts.wcs-care.co.uk 4 2026-05-19 2026-07-19 ok
mta-sts.wcs-care.co.uk 4 2026-05-16 2026-07-16 ok
www.wcs-care.co.uk 7 2026-05-16 2026-08-07 ok

Programmatic access, with DNS A records: API GET /v1/hosts/wcs-care.co.uk (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/wcs-care.co.uk.