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.

9 hosts · 307 ms

HostCertsFirst seenLast seen
klarna.com.au 11 2025-06-12 2026-09-10
*.klarna.com.au 2 2025-10-23 2026-09-23
url8212.klarna.com.au 2 2026-08-26 2026-08-26
shop.playground.klarna.com.au 2 2025-09-20 2026-08-20
pop.playground.klarna.com.au 2 2025-09-20 2026-08-20
shop.klarna.com.au 2 2025-09-18 2026-08-18
pop.klarna.com.au 2 2025-09-18 2026-08-18
click-us.klarna.com.au 3 2026-03-09 2026-08-26
www.klarna.com.au 11 2025-06-12 2026-09-10

Programmatic access: API GET /v1/hosts/klarna.com.au (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/klarna.com.au.