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.

17 hosts · 194 ms

HostCertsFirst seenLast seenDNS
navapbc.com 10 2026-04-22 2026-08-26 ok
*.navapbc.com 5 2026-04-24 2026-08-25 —
hub.navapbc.com 1 2026-05-29 2026-05-29 ok
staging.hub.navapbc.com 1 2026-05-29 2026-05-29 ok
blog.navapbc.com 14 2026-05-25 2026-09-20 ok
ui.lik.navapbc.com 1 2026-07-16 2026-07-16 ok
mcp.lik.navapbc.com 1 2026-07-16 2026-07-16 ok
caseworker.navapbc.com 3 2026-04-20 2026-09-20 ok
newsletter.navapbc.com 4 2026-04-14 2026-08-12 ok
fieldnotes.navapbc.com 6 2026-06-10 2026-08-08 ok
grants.navapbc.com 1 2026-01-26 2026-01-26 ok
mail-redirect.us-east-2.grants.navapbc.com 1 2026-01-26 2026-01-26 ok
staging.grants.navapbc.com 1 2026-01-12 2026-01-12 ok
mail-redirect.us-east-2.staging.grants.navapbc.com 1 2026-01-12 2026-01-12 ok
api.staging.grants.navapbc.com 1 2026-01-12 2026-01-12 ok
api.grants.navapbc.com 1 2026-01-26 2026-01-26 ok
www.navapbc.com 4 2026-04-23 2026-06-25 ok

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