Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts, first/last seen and live DNS status.

37 hosts · 392 ms

HostCertsFirst seenLast seenDNS
degura.de 13 2025-12-24 2026-08-30 ok
*.degura.de 1 2025-12-24 2025-12-24 —
s3.cool-amd.degura.de 4 2026-05-08 2026-07-07 ok
s3c.cool-amd.degura.de 4 2026-05-08 2026-07-07 ok
supabase.cool-amd.degura.de 4 2026-04-13 2026-08-11 ok
beszel.cool-amd.degura.de 5 2026-04-24 2026-08-22 ok
pensioncloud.degura.de 5 2026-05-03 2026-08-31 ok
webinare.degura.de 13 2026-04-09 2026-10-04 ok
staging.degura.de 1 2025-12-11 2025-12-11 nodata
*.staging.degura.de 1 2025-12-11 2025-12-11 —
pensioncloud.staging.degura.de 5 2026-05-02 2026-08-30 ok
api.staging.degura.de 5 2026-05-02 2026-08-30 ok
pension-check.staging.degura.de 5 2026-05-02 2026-08-30 ok
app.staging.degura.de 5 2026-05-02 2026-08-30 ok
bi.degura.de 5 2026-04-28 2026-08-25 ok
api.degura.de 5 2026-05-03 2026-08-31 ok
feedback.degura.de 5 2026-05-12 2026-09-09 ok
pension-check.degura.de 5 2026-05-03 2026-08-31 ok
cool.degura.de 4 2026-04-18 2026-08-16 ok
nocodb.cool.degura.de 1 2026-04-11 2026-04-11 ok
spdf.cool.degura.de 3 2026-06-08 2026-08-07 ok
mail.cool.degura.de 3 2026-06-15 2026-08-14 ok
tools.cool.degura.de 2 2026-07-02 2026-07-02 ok
app-dev.cool.degura.de 5 2026-04-21 2026-08-19 ok
deploy.cool.degura.de 5 2026-05-04 2026-09-01 ok
in.degura.de 5 2026-09-14 2026-09-14 ok
authentication.degura.de 5 2026-05-03 2026-08-31 ok
o.degura.de 5 2026-06-05 2026-10-03 ok
develop.degura.de 1 2025-12-11 2025-12-11 nodata
*.develop.degura.de 1 2025-12-11 2025-12-11 —
pensioncloud.develop.degura.de 5 2026-05-02 2026-08-30 ok
sonarqube.develop.degura.de 4 2026-05-05 2026-07-04 ok
api.develop.degura.de 5 2026-05-02 2026-08-30 ok
app.develop.degura.de 5 2026-05-02 2026-08-30 ok
app.degura.de 5 2026-05-03 2026-08-31 ok
trigger.degura.de 5 2026-05-09 2026-09-06 ok
www.degura.de 8 2026-05-23 2026-09-19 ok

Programmatic access, with DNS A records: API GET /v1/hosts/degura.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/degura.de.