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.

29 hosts · 325 ms

HostCertsFirst seenLast seenDNS
hans-natur.de 93 2026-01-06 2026-10-02 ok
*.hans-natur.de 15 2026-01-06 2026-10-02 —
fw01.hans-natur.de 4 2026-04-19 2026-08-19 ok
ws1.hans-natur.de 8 2026-05-30 2026-09-25 ok
grafana.hans-natur.de 5 2026-05-30 2026-09-27 ok
lb.hans-natur.de 8 2026-05-30 2026-09-25 ok
bridge.hans-natur.de 4 2026-06-06 2026-10-05 ok
retoure.hans-natur.de 1 2026-02-05 2026-02-05 ok
capig.hans-natur.de 6 2026-07-23 2026-09-20 ok
webappstaging.hans-natur.de 10 2026-05-30 2026-09-25 ok
katalog.hans-natur.de 5 2026-05-01 2026-08-29 ok
blog.hans-natur.de 8 2026-05-30 2026-09-25 ok
push.hans-natur.de 5 2026-04-25 2026-08-24 ok
mj.hans-natur.de 3 2026-07-16 2026-09-14 ok
link.hans-natur.de 6 2026-05-30 2026-09-25 ok
email.hans-natur.de 1 2026-05-15 2026-05-15 ok
gtm.hans-natur.de 6 2026-05-05 2026-09-01 ok
load.gtm.hans-natur.de 8 2026-04-23 2026-08-19 ok
social-login.hans-natur.de 3 2026-04-18 2026-08-11 ok
go.hans-natur.de 5 2026-05-19 2026-09-16 ok
dsgvo.hans-natur.de 2 2026-05-27 2026-05-27 ok
autodiscover.hans-natur.de 1 2026-05-15 2026-05-15 ok
metrics.hans-natur.de 10 2026-04-12 2026-09-25 ok
cms.hans-natur.de 8 2026-05-30 2026-09-25 ok
sylius.hans-natur.de 2 2026-06-19 2026-06-19 ok
ticket.hans-natur.de 5 2026-05-12 2026-09-09 ok
dnstest.hans-natur.de 8 2026-05-30 2026-09-25 ok
sst.hans-natur.de 10 2026-05-30 2026-09-25 ok
grafana-new.hans-natur.de 6 2026-05-30 2026-09-25 ok

Programmatic access, with DNS A records: API GET /v1/hosts/hans-natur.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/hans-natur.de.