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.

8 hosts · 325 ms

HostCertsFirst seenLast seenDNS
m3.info.adobe.com 5 2025-06-13 2026-05-20 ok
res3.info.adobe.com 6 2025-06-13 2026-05-20 ok
t3.info.adobe.com 4 2025-06-13 2026-05-20 ok
m4.info.adobe.com 5 2025-06-13 2026-05-20 ok
m5.info.adobe.com 5 2025-06-13 2026-05-20 ok
m6.info.adobe.com 5 2025-06-13 2026-05-20 ok
m7.info.adobe.com 5 2025-06-13 2026-05-20 ok
m3-page.info.adobe.com 2 2025-10-02 2025-10-02 nxdomain

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