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.

48 hosts · 344 ms

HostCertsFirst seenLast seenDNS
vardot.com 38 2026-05-09 2026-09-20 ok
*.vardot.com 22 2026-05-09 2026-09-19 —
www1.vardot.com 24 2026-04-17 2026-09-15 ok
seohub.vardot.com 20 2026-05-11 2026-09-23 ok
preprod.vardot.com 3 2026-09-14 2026-09-14 ok
engage.vardot.com 18 2026-05-20 2026-09-15 ok
varbase.vardot.com 25 2026-05-06 2026-09-20 ok
slack.varbase.vardot.com 18 2026-05-05 2026-09-15 ok
demo.varbase.vardot.com 4 2026-04-14 2026-08-16 ok
storybook.demo.varbase.vardot.com 4 2026-04-14 2026-08-16 ok
www.demo.varbase.vardot.com 4 2026-04-14 2026-08-16 ok
docs.varbase.vardot.com 13 2026-06-02 2026-09-28 ok
www.varbase.vardot.com 26 2026-05-05 2026-09-16 ok
blog.vardot.com 18 2026-05-05 2026-09-15 ok
slack.vardot.com 16 2026-05-07 2026-09-15 ok
*.in.vardot.com 5 2026-05-12 2026-09-13 —
*.stg.srv03.in.vardot.com 5 2026-05-12 2026-09-13 —
*.dev.srv03.in.vardot.com 5 2026-05-12 2026-09-13 —
*.preprod.srv08.in.vardot.com 5 2026-05-12 2026-09-13 —
*.stg.srv08.in.vardot.com 5 2026-05-12 2026-09-13 —
*.ffme.stg.srv08.in.vardot.com 5 2026-05-12 2026-09-13 —
*.dev.srv08.in.vardot.com 5 2026-05-12 2026-09-13 —
*.ffme.dev.srv08.in.vardot.com 5 2026-05-12 2026-09-13 —
kb.in.vardot.com 5 2026-05-19 2026-09-20 ok
*.gocd.in.vardot.com 5 2026-05-12 2026-09-13 —
snipe.in.vardot.com 5 2026-04-15 2026-09-11 ok
log.in.vardot.com 16 2026-04-12 2026-09-15 ok
auth.in.vardot.com 6 2026-04-09 2026-09-11 ok
rundeck.in.vardot.com 5 2026-06-30 2026-09-11 ok
learn.in.vardot.com 20 2026-04-14 2026-10-05 ok
openvas.in.vardot.com 1 2026-08-20 2026-08-20 ok
pass.in.vardot.com 5 2026-05-05 2026-09-02 ok
nessus.in.vardot.com 4 2026-08-20 2026-08-20 ok
secret.in.vardot.com 4 2026-04-17 2026-09-11 ok
start.in.vardot.com 18 2026-05-07 2026-09-15 ok
*.dev.in.vardot.com 5 2026-05-12 2026-09-13 —
sentry.in.vardot.com 8 2026-04-09 2026-09-11 ok
seo.vardot.com 4 2026-05-30 2026-09-17 ok
horizonaid.demos.vardot.com 4 2026-09-27 2026-09-27 ok
educare.demos.vardot.com 5 2026-09-27 2026-09-27 ok
varbase.demos.vardot.com 3 2026-09-27 2026-09-27 ok
rightup.demos.vardot.com 4 2026-09-27 2026-09-27 ok
careers.vardot.com 20 2026-05-05 2026-09-16 ok
accounts.vardot.com 20 2026-05-06 2026-09-15 ok
support.vardot.com 2 2025-09-02 2026-08-03 ok
staging.vu.vardot.com 18 2026-04-11 2026-09-15 ok
www.vardot.com 21 2026-05-05 2026-09-20 ok
support.my.vardot.com 2 2025-09-02 2026-08-03 ok

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