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.

5 hosts · 361 ms

HostCertsFirst seenLast seenDNS
prestocharging.com 8 2026-05-02 2026-10-02 ok
presto-dhl.prestocharging.com 4 2026-05-04 2026-08-29 ok
presto-amzl.prestocharging.com 4 2026-05-04 2026-08-29 ok
help.prestocharging.com 2 2025-07-07 2026-06-07 ok
www.prestocharging.com 13 2026-04-09 2026-10-03 ok

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