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.

21 hosts · 350 ms

HostCertsFirst seenLast seenDNS
greenway.care 10 2026-05-05 2026-09-25 ok
abcd.greenway.care 4 2026-07-20 2026-09-18 ok
card.greenway.care 17 2026-04-29 2026-09-25 ok
people.greenway.care 22 2026-05-12 2026-09-25 ok
line.greenway.care 1 2026-09-24 2026-09-24 ok
sncf.greenway.care 10 2026-05-01 2026-08-27 ok
api-staging.greenway.care 10 2026-04-27 2026-09-24 ok
bo-staging.greenway.care 10 2026-04-27 2026-09-24 ok
front-staging.greenway.care 10 2026-04-27 2026-09-24 ok
sftp-gateway-staging.greenway.care 9 2026-04-18 2026-09-14 ok
api.greenway.care 9 2026-05-09 2026-10-06 ok
portal.greenway.care 2 2026-09-25 2026-09-25 ok
foundation.greenway.care 8 2026-05-08 2026-09-03 ok
app.greenway.care 9 2026-05-09 2026-10-06 ok
ulys.greenway.care 13 2026-04-19 2026-09-25 ok
api-dev.greenway.care 10 2026-04-27 2026-09-24 ok
bo-dev.greenway.care 10 2026-04-27 2026-09-24 ok
front-dev.greenway.care 10 2026-04-27 2026-09-24 ok
sftp-gateway-dev.greenway.care 9 2026-04-18 2026-09-14 ok
www.greenway.care 11 2026-05-04 2026-09-25 ok
sftp-gateway.greenway.care 9 2026-04-18 2026-09-14 ok

Programmatic access, with DNS A records: API GET /v1/hosts/greenway.care (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/greenway.care.