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.

32 hosts · 307 ms

HostCertsFirst seenLast seenDNS
getindex.com 29 2026-03-18 2026-09-24 ok
*.getindex.com 19 2026-03-18 2026-09-24 —
qa01.getindex.com 3 2026-03-31 2026-08-31 ok
*.qa01.getindex.com 5 2026-03-31 2026-09-24 —
*.prod01.getindex.com 2 2026-09-25 2026-09-25 —
stage01.getindex.com 2 2025-07-06 2026-06-06 ok
*.stage01.getindex.com 2 2025-07-06 2026-06-06 —
*.staging01.getindex.com 2 2026-09-25 2026-09-25 —
dev01.getindex.com 1 2025-11-04 2025-11-04 nodata
*.dev01.getindex.com 3 2025-11-04 2026-09-24 —
m.qa.getindex.com 2 2026-03-03 2026-08-18 ok
m.stage.getindex.com 2 2026-03-03 2026-08-18 ok
qa01-businessprofile.getindex.com 3 2025-09-10 2026-08-11 nodata
*.qa01-businessprofile.getindex.com 3 2025-09-10 2026-08-11 —
prod01-businessprofile.getindex.com 1 2025-11-16 2025-11-16 nodata
*.prod01-businessprofile.getindex.com 1 2025-11-16 2025-11-16 —
stage01-businessprofile.getindex.com 3 2025-09-10 2026-08-11 nodata
*.stage01-businessprofile.getindex.com 3 2025-09-10 2026-08-11 —
dev01-businessprofile.getindex.com 3 2025-09-10 2026-08-11 nodata
*.dev01-businessprofile.getindex.com 3 2025-09-10 2026-08-11 —
m.getindex.com 2 2026-03-03 2026-08-03 ok
info.getindex.com 2 2026-04-02 2026-09-02 nodata
*.info.getindex.com 2 2026-04-02 2026-09-02 —
go.getindex.com 4 2026-05-01 2026-05-01 ok
qa01-messages.getindex.com 3 2025-09-15 2026-08-16 nodata
*.qa01-messages.getindex.com 3 2025-09-15 2026-08-16 —
prod01-messages.getindex.com 1 2025-11-16 2025-11-16 nodata
*.prod01-messages.getindex.com 1 2025-11-16 2025-11-16 —
stage01-messages.getindex.com 3 2025-09-16 2026-08-17 nodata
*.stage01-messages.getindex.com 3 2025-09-16 2026-08-17 —
dev01-messages.getindex.com 3 2025-09-15 2026-08-16 nodata
*.dev01-messages.getindex.com 3 2025-09-15 2026-08-16 —

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