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.

15 hosts · 288 ms

HostCertsFirst seenLast seenDNS
solidnames.fr 6 2026-04-15 2026-09-24 ok
tld-game.solidnames.fr 5 2026-06-07 2026-09-24 ok
litellm.ai.solidnames.fr 1 2026-09-24 2026-09-24 ok
sn-hosting-api.solidnames.fr 5 2026-04-23 2026-08-21 ok
sign.solidnames.fr 6 2026-04-15 2026-09-24 ok
solidnames.demo.solidnames.fr 5 2026-06-01 2026-09-28 ok
snap.solidnames.fr 5 2026-05-20 2026-09-15 ok
url-unlocker.solidnames.fr 6 2026-04-15 2026-09-24 ok
tracking.newsletter.solidnames.fr 11 2026-05-05 2026-09-02 ok
forms.solidnames.fr 6 2026-04-15 2026-09-24 ok
secrets.solidnames.fr 6 2026-04-15 2026-09-24 ok
extranet.solidnames.fr 5 2026-05-31 2026-09-28 ok
snap-rabbit.solidnames.fr 5 2026-05-20 2026-09-15 ok
element.solidnames.fr 5 2026-05-05 2026-09-02 ok
matrix.solidnames.fr 5 2026-05-05 2026-09-02 ok

Programmatic access, with DNS A records: API GET /v1/hosts/solidnames.fr (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/solidnames.fr.