Find every subdomain
of a domain.

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

36 hosts · 259 ms

HostCertsFirst seenLast seen
roobet.com 72 2026-04-17 2026-10-11
*.roobet.com 45 2026-04-17 2026-10-11
links1.roobet.com 10 2026-04-19 2026-08-15
unsub.roobet.com 6 2026-06-01 2026-10-01
dice.roobet.com 13 2026-04-20 2026-08-17
bitcoin-node.roobet.com 8 2026-04-18 2026-08-15
edge.roobet.com 17 2026-04-19 2026-08-17
testsite.roobet.com 10 2026-04-20 2026-08-17
email.mg.roobet.com 10 2026-04-18 2026-08-15
staging.roobet.com 20 2026-05-10 2026-10-04
*.staging.roobet.com 20 2026-05-10 2026-10-04
*.monitoring.staging.roobet.com 14 2026-05-13 2026-09-07
games.staging.roobet.com 10 2026-06-08 2026-10-04
*.games.staging.roobet.com 10 2026-06-08 2026-10-04
i.roobet.com 6 2026-06-06 2026-10-05
api.roobet.com 8 2026-04-18 2026-08-14
mexico.roobet.com 8 2026-04-19 2026-08-15
go.roobet.com 11 2026-05-22 2026-09-17
lp.roobet.com 10 2026-04-20 2026-08-17
live-lp.roobet.com 10 2026-04-19 2026-08-15
help.roobet.com 10 2026-04-19 2026-08-15
tiki-21.games.roobet.com 18 2026-04-21 2026-08-19
yeti-towers.games.roobet.com 23 2026-04-18 2026-08-15
fs.roobet.com 5 2026-04-21 2026-09-28
crash-gs.roobet.com 10 2026-04-19 2026-08-15
links.roobet.com 12 2026-04-20 2026-08-17
promotions.roobet.com 13 2026-06-08 2026-10-04
reviews.roobet.com 10 2026-04-19 2026-08-15
toast.roobet.com 8 2026-04-19 2026-08-15
tiki-21.games.toast.roobet.com 26 2026-06-04 2026-10-01
x.toast.roobet.com 21 2026-04-18 2026-08-16
xtest.roobet.com 13 2026-04-19 2026-08-15
www.roobet.com 10 2026-04-19 2026-08-15
x.roobet.com 19 2026-04-18 2026-08-15
routing-mx.roobet.com 14 2026-05-17 2026-10-02
*.routing-mx.roobet.com 14 2026-05-17 2026-10-02

Programmatic access: API GET /v1/hosts/roobet.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/roobet.com.