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.

14 hosts · 303 ms

HostCertsFirst seenLast seenDNS
gq-magazine.co.uk 23 2025-10-01 2026-09-10 ok
*.gq-magazine.co.uk 23 2025-10-01 2026-09-10 —
c2.gq-magazine.co.uk 5 2025-12-29 2025-12-29 ok
media.gq-magazine.co.uk 5 2025-07-30 2026-08-26 ok
stag-media.gq-magazine.co.uk 5 2025-07-30 2026-08-26 ok
c.gq-magazine.co.uk 5 2025-12-29 2025-12-29 ok
qc.gq-magazine.co.uk 10 2025-09-23 2026-08-24 ok
ssc.gq-magazine.co.uk 1 2026-01-14 2026-01-14 ok
interactive.gq-magazine.co.uk 1 2026-06-30 2026-06-30 ok
permutive.gq-magazine.co.uk 4 2026-04-16 2026-09-07 ok
stag.gq-magazine.co.uk 1 2026-01-27 2026-01-27 ok
interactive-stag.gq-magazine.co.uk 2 2026-06-17 2026-06-18 ok
link.gq-magazine.co.uk 6 2026-06-03 2026-10-01 ok
app.gq-magazine.co.uk 1 2026-06-23 2026-06-23 ok

Programmatic access, with DNS A records: API GET /v1/hosts/gq-magazine.co.uk (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/gq-magazine.co.uk.