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.

23 hosts · 268 ms

HostCertsFirst seenLast seen
mein-aldi.de 2 2026-02-22 2026-07-10
*.angebote.mein-aldi.de 4 2025-10-27 2026-09-27
api.mein-aldi.de 6 2025-09-19 2026-10-01
staging.api.mein-aldi.de 7 2026-05-22 2026-10-01
asl.api.mein-aldi.de 3 2026-06-07 2026-08-12
staging.asl.api.mein-aldi.de 3 2026-06-07 2026-08-12
storefront.api.mein-aldi.de 5 2026-05-08 2026-09-17
staging.storefront.api.mein-aldi.de 6 2026-05-08 2026-09-17
test.api.mein-aldi.de 1 2025-08-20 2025-08-20
*.test.api.mein-aldi.de 1 2025-08-20 2025-08-20
dev.api.mein-aldi.de 1 2025-09-21 2025-09-21
asl.mein-aldi.de 3 2026-06-03 2026-08-08
staging.asl.mein-aldi.de 3 2026-06-03 2026-08-08
*.app.mein-aldi.de 2 2025-07-12 2026-06-12
kontakt.mein-aldi.de 4 2026-06-11 2026-06-18
account.mein-aldi.de 4 2026-05-22 2026-08-03
waf.account.mein-aldi.de 2 2026-05-22 2026-05-22
staging.waf.account.mein-aldi.de 4 2026-05-22 2026-07-27
staging.account.mein-aldi.de 3 2026-05-22 2026-08-03
preview.mein-aldi.de 3 2026-06-09 2026-08-14
staging.preview.mein-aldi.de 3 2026-06-09 2026-08-14
www.mein-aldi.de 5 2026-02-22 2026-08-10
staging.www.mein-aldi.de 3 2026-05-29 2026-08-03

Programmatic access: API GET /v1/hosts/mein-aldi.de (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/mein-aldi.de.