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.

29 hosts · 266 ms

HostCertsFirst seenLast seen
ploom.it 40 2026-04-11 2026-10-07
*.ploom.it 23 2026-04-11 2026-10-07
eva.ploom.it 10 2026-05-08 2026-09-03
gcc.ploom.it 5 2026-06-05 2026-10-03
m1.mail.ploom.it 2 2026-04-13 2026-09-13
res1.mail.ploom.it 2 2026-04-13 2026-09-13
t1.mail.ploom.it 2 2026-04-13 2026-09-13
res5.mail.ploom.it 16 2026-04-13 2026-09-13
t5.mail.ploom.it 19 2026-04-13 2026-09-13
m6.mail.ploom.it 12 2026-04-13 2026-09-13
res6.mail.ploom.it 18 2026-04-13 2026-09-13
t6.mail.ploom.it 16 2026-04-13 2026-09-13
web.mail.ploom.it 2 2026-04-13 2026-09-13
retail.ploom.it 20 2026-05-08 2026-09-03
order.ploom.it 10 2026-04-19 2026-08-15
3d-configurator.ploom.it 5 2026-06-04 2026-09-26
m6.connect.ploom.it 14 2026-06-07 2026-10-03
res6.connect.ploom.it 14 2026-06-07 2026-10-03
t6.connect.ploom.it 17 2026-06-08 2026-10-05
m1.receipt.ploom.it 2 2026-04-13 2026-09-13
res1.receipt.ploom.it 2 2026-04-13 2026-09-13
t1.receipt.ploom.it 2 2026-04-13 2026-09-13
res5.receipt.ploom.it 15 2026-04-13 2026-09-13
t5.receipt.ploom.it 18 2026-04-13 2026-09-13
m6.receipt.ploom.it 16 2026-04-13 2026-09-13
res6.receipt.ploom.it 14 2026-04-13 2026-09-13
t6.receipt.ploom.it 20 2026-04-13 2026-09-13
web.receipt.ploom.it 2 2026-04-13 2026-09-13
www.ploom.it 22 2026-05-09 2026-09-06

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