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.

26 hosts · 399 ms

HostCertsFirst seenLast seenDNS
coralgardeners.org 15 2026-05-22 2026-09-23 ok
data.coralgardeners.org 6 2026-04-19 2026-09-18 ok
dashboard.coralgardeners.org 3 2026-05-25 2026-09-17 ok
training.coralgardeners.org 6 2026-05-06 2026-09-16 ok
api.coralgardeners.org 2 2026-04-24 2026-06-19 ok
shop-api.coralgardeners.org 1 2026-09-25 2026-09-25 ok
dataapi.coralgardeners.org 3 2026-05-10 2026-09-05 ok
impactportal.coralgardeners.org 6 2026-05-26 2026-09-20 ok
dronemap.coralgardeners.org 5 2026-06-03 2026-09-27 ok
reefmanager.coralgardeners.org 3 2026-04-19 2026-08-17 ok
labs.coralgardeners.org 3 2026-06-06 2026-08-08 ok
cglabs.coralgardeners.org 5 2026-05-24 2026-09-16 ok
docs.coralgardeners.org 1 2026-10-04 2026-10-04 ok
3dgs.coralgardeners.org 6 2026-05-21 2026-09-15 ok
tools.coralgardeners.org 2 2026-10-03 2026-10-03 ok
reefos.coralgardeners.org 7 2026-05-29 2026-09-22 ok
maps.coralgardeners.org 3 2026-04-11 2026-08-07 ok
chat.coralgardeners.org 6 2026-05-30 2026-09-22 ok
intranet.coralgardeners.org 5 2026-07-01 2026-08-28 ok
checkout.coralgardeners.org 1 2026-09-29 2026-09-29 ok
reef-view.coralgardeners.org 6 2026-04-09 2026-10-01 ok
www.coralgardeners.org 15 2026-05-24 2026-09-23 ok
methodology.coralgardeners.org 2 2026-06-30 2026-08-22 ok
*.methodology.coralgardeners.org 2 2026-06-30 2026-08-22 —
photogrammetry.coralgardeners.org 3 2026-05-10 2026-09-05 ok
community.coralgardeners.org 3 2026-04-11 2026-08-07 ok

Programmatic access, with DNS A records: API GET /v1/hosts/coralgardeners.org (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/coralgardeners.org.