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.

18 hosts · 309 ms

HostCertsFirst seenLast seenDNS
wavesonline.com 14 2026-05-10 2026-09-18 ok
*.wavesonline.com 1 2026-09-18 2026-09-18 —
b2c.wavesonline.com 37 2026-04-27 2026-09-27 ok
acc.wavesonline.com 11 2026-04-18 2026-09-08 ok
oad.wavesonline.com 1 2026-08-27 2026-08-27 ok
travelnoord.wavesonline.com 13 2026-05-05 2026-09-07 ok
api.wavesonline.com 7 2026-06-05 2026-08-05 ok
prijsvrij.wavesonline.com 13 2026-05-23 2026-09-21 ok
track.wavesonline.com 4 2026-05-13 2026-07-28 ok
cdn.wavesonline.com 4 2026-05-29 2026-09-14 ok
d-reizen.wavesonline.com 12 2026-04-21 2026-09-08 ok
mijn.wavesonline.com 13 2026-04-27 2026-09-07 ok
vakantiediscounter.wavesonline.com 13 2026-05-19 2026-09-17 ok
cruiseambassadors.wavesonline.com 13 2026-04-26 2026-09-07 ok
ss.wavesonline.com 4 2026-06-05 2026-10-03 ok
content.wavesonline.com 5 2026-04-26 2026-08-24 servfail
test.wavesonline.com 13 2026-05-20 2026-09-19 ok
www.wavesonline.com 13 2026-05-10 2026-09-08 servfail

Programmatic access, with DNS A records: API GET /v1/hosts/wavesonline.com (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/wavesonline.com.