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.

34 hosts · 236 ms

HostCertsFirst seenLast seen
ploom.hu 35 2025-07-16 2026-09-21
*.ploom.hu 14 2026-05-10 2026-09-05
eva.ploom.hu 18 2026-05-08 2026-09-04
gcc.ploom.hu 5 2026-04-29 2026-08-27
m1.hirek.ploom.hu 10 2026-04-20 2026-08-16
res1.hirek.ploom.hu 14 2026-04-21 2026-08-17
t1.hirek.ploom.hu 8 2026-04-20 2026-08-16
res5.hirek.ploom.hu 20 2026-05-22 2026-09-18
t5.hirek.ploom.hu 20 2026-05-23 2026-09-19
m6.hirek.ploom.hu 16 2026-05-22 2026-09-18
res6.hirek.ploom.hu 20 2026-05-22 2026-09-17
t6.hirek.ploom.hu 20 2026-05-23 2026-09-19
m1.fiok.ploom.hu 12 2026-04-19 2026-08-15
res1.fiok.ploom.hu 12 2026-04-21 2026-08-18
t1.fiok.ploom.hu 8 2026-04-21 2026-08-17
res5.fiok.ploom.hu 18 2026-05-23 2026-09-18
t5.fiok.ploom.hu 12 2026-05-22 2026-09-17
m6.fiok.ploom.hu 14 2026-05-22 2026-09-17
res6.fiok.ploom.hu 16 2026-05-22 2026-09-17
t6.fiok.ploom.hu 12 2026-05-22 2026-09-17
order.ploom.hu 16 2026-06-06 2026-10-02
m1.felmeres.ploom.hu 13 2026-05-11 2026-09-06
res1.felmeres.ploom.hu 14 2026-05-11 2026-09-06
t1.felmeres.ploom.hu 20 2026-05-11 2026-09-06
res5.felmeres.ploom.hu 16 2026-05-23 2026-09-18
t5.felmeres.ploom.hu 18 2026-05-23 2026-09-19
m6.felmeres.ploom.hu 14 2026-05-22 2026-09-17
res6.felmeres.ploom.hu 15 2026-05-22 2026-09-17
t6.felmeres.ploom.hu 14 2026-05-22 2026-09-17
support.ploom.hu 4 2025-07-16 2026-06-16
www.support.ploom.hu 22 2025-07-16 2026-08-23
qasupport.ploom.hu 2 2025-07-16 2026-05-18
devsupport.ploom.hu 2 2025-07-16 2026-05-18
www.ploom.hu 11 2025-07-16 2026-09-21

Programmatic access: API GET /v1/hosts/ploom.hu (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/ploom.hu.