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.

11 hosts · 327 ms

HostCertsFirst seenLast seenDNS
vayaworkforce.com 16 2025-09-06 2026-08-25 ok
*.vayaworkforce.com 12 2025-09-06 2026-08-25 —
data.analytics.vayaworkforce.com 5 2026-05-27 2026-09-18 ok
content.analytics.vayaworkforce.com 6 2026-04-18 2026-09-17 ok
events.vayaworkforce.com 8 2026-04-10 2026-08-06 ok
mta-sts.vayaworkforce.com 4 2026-05-13 2026-07-24 ok
eft.vayaworkforce.com 2 2026-03-01 2026-03-01 ok
www.eft.vayaworkforce.com 2 2026-03-01 2026-03-01 nxdomain
www-dev.vayaworkforce.com 3 2026-06-03 2026-08-04 ok
www.vayaworkforce.com 4 2026-04-07 2026-08-09 ok
email.crsurvey.vayaworkforce.com 5 2026-04-26 2026-08-24 ok

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