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 · 257 ms

HostCertsFirst seenLast seenDNS
personalizationmall.com 6 2025-12-26 2026-08-30 ok
*.personalizationmall.com 7 2025-12-26 2026-09-08 —
4up50c.personalizationmall.com 47 2026-04-28 2026-08-22 ok
fndmg.personalizationmall.com 16 2026-05-14 2026-09-09 ok
blog.personalizationmall.com 7 2026-05-19 2026-09-07 ok
www.blog.personalizationmall.com 7 2026-05-19 2026-09-07 ok
ohjrxj.personalizationmall.com 4 2026-05-22 2026-08-01 ok
cloud.email.personalizationmall.com 3 2026-04-08 2026-09-10 ok
image.email.personalizationmall.com 1 2026-01-31 2026-01-31 ok
click.email.personalizationmall.com 2 2026-04-08 2026-09-11 ok
view.email.personalizationmall.com 3 2026-04-08 2026-09-16 ok
image.em.personalizationmall.com 3 2026-03-21 2026-08-10 ok
enews.personalizationmall.com 10 2026-04-21 2026-08-17 ok
www.personalizationmall.com 4 2025-06-09 2026-08-31 ok

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