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 · 255 ms

Download CSV
HostCertsFirst seenLast seen
footasylum.com 9 2025-09-16 2026-08-15
*.footasylum.com 4 2025-09-16 2026-08-15
ww2.footasylum.com 3 2026-06-15 2026-09-14
media.footasylum.com 3 2026-06-15 2026-09-14
xdaoxa.footasylum.com 3 2026-05-04 2026-09-10
manage.footasylum.com 3 2026-06-15 2026-09-14
secure.footasylum.com 5 2025-09-17 2026-07-28
staging.footasylum.com 3 2026-07-28 2026-07-28
brandreporting.footasylum.com 5 2025-09-17 2026-07-28
clickom.email.footasylum.com 5 2025-07-02 2026-10-13
images.footasylum.com 3 2026-06-15 2026-09-14
clicks.footasylum.com 4 2026-06-17 2026-10-13
links.footasylum.com 5 2026-09-29 2026-10-15
careers.footasylum.com 6 2026-04-15 2026-10-16
checkouttest.footasylum.com 3 2026-03-25 2026-08-25
checkout.footasylum.com 3 2026-03-25 2026-08-25
preview.footasylum.com 3 2026-06-15 2026-09-14
www.footasylum.com 5 2025-09-17 2026-07-28
pay.footasylum.com 5 2026-04-22 2026-09-09

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