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.

36 hosts · 214 ms

HostCertsFirst seenLast seen
personio.com 6 2026-02-02 2026-09-27
*.personio.com 1 2026-02-02 2026-02-02
marketplace.personio.com 5 2026-05-26 2026-09-28
uat.marketplace.personio.com 5 2026-06-01 2026-10-02
www.marketplace.personio.com 5 2026-05-29 2026-09-29
groove.personio.com 5 2026-05-25 2026-09-23
marketing.personio.com 16 2026-04-24 2026-08-20
hug.personio.com 5 2026-04-22 2026-08-26
search.personio.com 14 2026-05-13 2026-09-08
email.research.personio.com 5 2026-05-08 2026-09-05
omnichannel.personio.com 6 2025-07-10 2026-09-22
upflow-email.personio.com 5 2026-05-29 2026-09-26
login.personio.com 10 2026-04-24 2026-08-21
learn.personio.com 1 2025-11-23 2025-11-23
app.personio.com 5 2026-02-27 2026-09-22
*.app.personio.com 9 2025-07-10 2026-09-22
developer.personio.com 3 2026-06-14 2026-08-14
hr.personio.com 11 2026-04-23 2026-08-24
jobs.personio.com 3 2026-02-24 2026-09-22
*.jobs.personio.com 3 2026-02-24 2026-09-22
pods.personio.com 5 2026-04-25 2026-08-27
badges.personio.com 10 2026-04-13 2026-10-07
candidates.personio.com 6 2026-05-10 2026-09-05
webassets.personio.com 5 2026-04-22 2026-08-24
events.personio.com 5 2026-05-01 2026-08-28
email.events.personio.com 5 2026-05-22 2026-09-24
surveys.personio.com 3 2026-06-09 2026-08-18
t.personio.com 5 2026-05-12 2026-09-09
uat.personio.com 5 2026-04-30 2026-09-03
talent.personio.com 1 2026-01-24 2026-01-24
*.talent.personio.com 1 2026-01-24 2026-01-24
event.personio.com 12 2026-06-10 2026-10-06
trust.personio.com 8 2026-05-13 2026-09-08
tt.personio.com 4 2026-04-15 2026-08-13
www.personio.com 7 2026-05-29 2026-10-01
community.personio.com 2 2025-08-22 2026-07-22

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