Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

19 hosts · 263 ms

HostCertsFirst seenLast seen
fay.com 3 2025-11-03 2026-09-08
qas2.fay.com 2 2025-11-03 2026-09-08
dev2.fay.com 2 2025-11-03 2026-09-08
pressarea.fay.com 11 2026-04-24 2026-08-23
intouch-qa.fay.com 3 2026-03-19 2026-05-15
intouchlink-qa.fay.com 1 2026-06-19 2026-06-19
preprod.fay.com 2 2025-11-03 2026-09-08
intouch.fay.com 3 2026-03-19 2026-05-14
intouchlink.fay.com 1 2026-06-19 2026-06-19
sstdm.fay.com 3 2026-05-25 2026-09-09
showroom.fay.com 4 2025-07-14 2026-08-05
gtm.fay.com 4 2026-04-17 2026-09-29
qas.fay.com 2 2025-11-03 2026-09-08
surveyredirect.fay.com 9 2026-04-23 2026-09-16
qas-surveyredirect.fay.com 9 2026-04-23 2026-09-16
past.fay.com 3 2026-05-12 2026-09-02
checkout.fay.com 5 2026-04-28 2026-09-15
dev.fay.com 2 2025-11-03 2026-09-08
www.fay.com 9 2026-04-23 2026-09-16

Programmatic access: API GET /v1/hosts/fay.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/fay.com.