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.

29 hosts · 333 ms

HostCertsFirst seenLast seenDNS
thefabulous.co 74 2026-04-11 2026-10-01 ok
*.thefabulous.co 39 2026-05-08 2026-10-01 —
shape-pwa.thefabulous.co 3 2026-05-30 2026-08-14 ok
pod.thefabulous.co 4 2026-07-31 2026-07-31 ok
purchase.thefabulous.co 9 2026-04-29 2026-08-25 ok
exercise.thefabulous.co 1 2026-08-27 2026-08-27 ok
landing.thefabulous.co 10 2026-05-05 2026-08-31 ok
blog.thefabulous.co 8 2026-05-18 2026-07-16 ok
*.blog.thefabulous.co 8 2026-05-18 2026-07-16 —
dash.thefabulous.co 5 2026-05-13 2026-09-08 ok
ai.thefabulous.co 3 2026-05-01 2026-08-15 ok
ai-tools-api.thefabulous.co 12 2026-04-12 2026-08-08 ok
feedback.thefabulous.co 2 2026-06-15 2026-06-15 ok
premium.thefabulous.co 8 2026-05-03 2026-08-30 ok
focusdeep.thefabulous.co 1 2026-09-29 2026-09-29 ok
help.thefabulous.co 18 2026-05-14 2026-09-09 ok
q.thefabulous.co 8 2026-04-20 2026-06-18 ok
*.q.thefabulous.co 8 2026-04-20 2026-06-18 —
partner.thefabulous.co 6 2026-04-15 2026-08-11 ok
photor.thefabulous.co 1 2026-09-24 2026-09-24 ok
apps.thefabulous.co 8 2026-05-02 2026-08-28 ok
payment.thefabulous.co 6 2026-04-29 2026-08-25 ok
content.thefabulous.co 5 2026-05-13 2026-09-09 ok
v.thefabulous.co 6 2026-07-13 2026-09-07 ok
gow.thefabulous.co 4 2026-04-13 2026-08-10 ok
aigtw.thefabulous.co 10 2026-04-15 2026-08-11 ok
www.thefabulous.co 5 2026-05-13 2026-09-09 ok
journey.thefabulous.co 10 2026-05-02 2026-08-28 ok
ai-coach-proxy.thefabulous.co 8 2026-04-11 2026-08-07 ok

Programmatic access, with DNS A records: API GET /v1/hosts/thefabulous.co (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/thefabulous.co.