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.

7 hosts · 318 ms

HostCertsFirst seenLast seen
smartcharge.co.uk 2 2025-08-20 2026-07-21
api-prd.smartcharge.co.uk 2 2025-07-22 2026-06-22
*.charge.smartcharge.co.uk 2 2026-04-09 2026-09-09
admin.smartcharge.co.uk 3 2025-06-18 2026-06-22
qr.smartcharge.co.uk 2 2025-07-03 2026-06-03
int.smartcharge.co.uk 2 2025-08-19 2026-07-20
www.smartcharge.co.uk 2 2025-08-20 2026-07-21

Programmatic access: API GET /v1/hosts/smartcharge.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/smartcharge.co.uk.