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.

18 hosts · 319 ms

HostCertsFirst seenLast seenDNS
capawesome.io 69 2026-04-11 2026-10-05 ok
*.capawesome.io 24 2026-05-07 2026-10-03 —
background-geolocation-playground.capawesome.io 2 2026-08-13 2026-08-13 ok
*.background-geolocation-playground.capawesome.io 2 2026-08-13 2026-08-13 —
cloud.capawesome.io 12 2026-04-23 2026-08-19 ok
console.cloud.capawesome.io 10 2026-04-22 2026-08-18 ok
api.cloud.capawesome.io 12 2026-04-11 2026-10-05 ok
api.capawesome.io 6 2026-05-11 2026-09-06 ok
nfc-demo.capawesome.io 6 2026-04-19 2026-08-15 ok
mcp.capawesome.io 2 2026-08-17 2026-08-17 ok
ionic-framework-mcp.capawesome.io 5 2026-09-07 2026-09-07 ok
*.ionic-framework-mcp.capawesome.io 5 2026-09-07 2026-09-07 —
capacitor-mcp.capawesome.io 4 2026-09-07 2026-09-07 ok
*.capacitor-mcp.capawesome.io 4 2026-09-07 2026-09-07 —
*.mcp.capawesome.io 2 2026-08-17 2026-08-17 —
status.capawesome.io 5 2026-04-28 2026-08-26 ok
trust.capawesome.io 3 2026-06-16 2026-08-17 ok
npm.registry.capawesome.io 10 2026-04-28 2026-08-24 ok

Programmatic access, with DNS A records: API GET /v1/hosts/capawesome.io (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/capawesome.io.