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.

24 hosts · 264 ms

HostCertsFirst seenLast seen
paddio.com 5 2025-12-30 2026-09-07
*.paddio.com 1 2026-01-15 2026-01-15
servicing-qa.paddio.com 13 2026-04-16 2026-09-18
*.servicing-qa.paddio.com 13 2026-04-16 2026-09-18
*.qa.servicing-qa.paddio.com 4 2026-04-19 2026-08-17
*.load.servicing-qa.paddio.com 4 2026-04-19 2026-08-17
*.prod.servicing-qa.paddio.com 4 2026-04-19 2026-08-17
*.uat.servicing-qa.paddio.com 4 2026-04-19 2026-08-17
*.dev.servicing-qa.paddio.com 4 2026-04-19 2026-08-17
web.paddio.com 6 2026-05-06 2026-09-01
servicing.paddio.com 22 2026-04-16 2026-09-16
*.servicing.paddio.com 22 2026-04-16 2026-09-16
*.qa.servicing.paddio.com 5 2026-05-19 2026-09-16
*.load.servicing.paddio.com 5 2026-05-19 2026-09-16
*.prod.servicing.paddio.com 5 2026-05-19 2026-09-16
*.uat.servicing.paddio.com 5 2026-05-19 2026-09-16
*.dev.servicing.paddio.com 5 2026-05-19 2026-09-16
link.paddio.com 1 2026-04-14 2026-04-14
securemail.paddio.com 1 2025-12-18 2025-12-18
go.paddio.com 10 2026-06-14 2026-10-10
servicing-uat.paddio.com 9 2026-05-22 2026-09-22
*.servicing-uat.paddio.com 9 2026-05-22 2026-09-22
storefront.paddio.com 5 2026-05-08 2026-09-03
www.paddio.com 2 2025-12-02 2025-12-02

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