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 · 412 ms

HostCertsFirst seenLast seenDNS
buda.com 29 2026-05-11 2026-10-03 ok
*.buda.com 29 2026-05-11 2026-10-03 —
pages-g.buda.com 2 2026-05-07 2026-05-07 nodata
staging.buda.com 14 2026-05-13 2026-09-09 nodata
*.staging.buda.com 14 2026-05-13 2026-09-09 —
pages-g.staging.buda.com 8 2026-04-24 2026-08-21 ok
pages-r.staging.buda.com 10 2026-04-23 2026-08-19 ok
blog.buda.com 7 2026-06-18 2026-09-26 ok
pages-r.buda.com 10 2026-04-23 2026-06-22 nodata
canaldenuncias.buda.com 3 2026-04-18 2026-06-16 nodata
status.buda.com 4 2026-04-12 2026-08-10 ok
eot.buda.com 5 2026-05-20 2026-09-16 ok
test.buda.com 18 2026-05-27 2026-09-25 ok
*.test.buda.com 18 2026-05-27 2026-09-25 —
edu.buda.com 6 2026-04-15 2026-06-13 ok

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