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.

86 hosts · 405 ms

HostCertsFirst seenLast seenDNS
testlify.com 18 2026-04-26 2026-08-30 ok
*.testlify.com 16 2025-08-12 2026-10-04 —
candidate.ksa2.testlify.com 1 2026-09-03 2026-09-03 ok
candidate.us2.testlify.com 1 2026-09-03 2026-09-03 ok
candidate.eu2.testlify.com 3 2026-07-22 2026-09-22 ok
*.eu.persona.testlify.com 5 2026-04-27 2026-08-25 —
app.sa.testlify.com 5 2026-05-22 2026-09-26 ok
backoffice-ksa.testlify.com 2 2026-04-24 2026-04-24 ok
metabase-ksa.testlify.com 3 2026-04-11 2026-06-10 ok
integrations-ksa.testlify.com 1 2026-04-13 2026-04-13 ok
argocd.ksa.testlify.com 4 2026-04-17 2026-09-11 ok
backoffice.ksa.testlify.com 4 2026-04-17 2026-09-11 ok
metabase.ksa.testlify.com 3 2026-07-04 2026-09-11 ok
candidate.ksa.testlify.com 5 2026-05-22 2026-09-25 ok
rundeck.ksa.testlify.com 3 2026-07-08 2026-09-06 ok
otel.ksa.testlify.com 3 2026-07-23 2026-09-21 ok
app.ksa.testlify.com 5 2026-05-22 2026-09-25 ok
bullmq.ksa.testlify.com 5 2026-05-26 2026-09-23 ok
integrations.ksa.testlify.com 8 2026-04-28 2026-10-01 ok
audit.ksa.testlify.com 1 2026-08-26 2026-08-26 ok
preview.ksa.testlify.com 3 2026-07-20 2026-09-20 ok
openreplay.ksa.testlify.com 3 2026-07-07 2026-09-11 ok
metabase-usa.testlify.com 2 2026-05-15 2026-05-15 ok
candidate.usa.testlify.com 5 2026-05-19 2026-09-19 ok
backoffice.testlify.com 5 2026-05-04 2026-09-11 ok
metabase.testlify.com 6 2026-04-12 2026-09-11 ok
website.testlify.com 2 2026-08-11 2026-08-11 ok
email.mg.testlify.com 5 2026-05-04 2026-09-01 ok
billing.testlify.com 18 2025-06-09 2025-10-06 ok
bullmq.ddb-stg.testlify.com 3 2026-06-17 2026-08-16 ok
argocd.stg.testlify.com 5 2026-04-24 2026-08-22 ok
backoffice.stg.testlify.com 4 2026-04-21 2026-08-19 ok
api.stg.testlify.com 2 2026-06-04 2026-06-04 ok
otel.stg.testlify.com 3 2026-07-23 2026-09-21 ok
bullmq.stg.testlify.com 5 2026-05-24 2026-09-21 ok
integrations.stg.testlify.com 6 2026-04-26 2026-09-08 ok
mailcoach.testlify.com 7 2026-02-14 2026-10-01 ok
video-api.testlify.com 3 2026-05-24 2026-09-09 ok
otel.testlify.com 4 2026-04-10 2026-09-21 ok
n8n.testlify.com 3 2026-06-23 2026-08-22 ok
cdn.testlify.com 1 2025-12-07 2025-12-07 ok
roadmap.testlify.com 8 2026-04-30 2026-09-29 ok
help.testlify.com 5 2026-05-17 2026-09-13 ok
backoffice.stgtemp.testlify.com 2 2026-06-29 2026-06-29 ok
api.stgtemp.testlify.com 2 2026-07-02 2026-07-02 ok
bullmq.stgtemp.testlify.com 2 2026-06-29 2026-06-29 ok
integrations.stgtemp.testlify.com 2 2026-07-02 2026-07-02 ok
us.app.testlify.com 2 2026-05-14 2026-05-14 nxdomain
bullmq.testlify.com 5 2026-05-24 2026-09-21 ok
webhook-runner.testlify.com 2 2026-07-03 2026-07-03 ok
docs.testlify.com 9 2026-05-30 2026-09-26 ok
hs.testlify.com 16 2026-05-30 2026-09-25 ok
webhooks.testlify.com 7 2026-05-18 2026-09-11 ok
argocd.us.testlify.com 5 2026-05-03 2026-09-11 ok
backoffice.us.testlify.com 5 2026-05-03 2026-09-11 ok
metabase.us.testlify.com 3 2026-07-04 2026-09-11 ok
rundeck.us.testlify.com 5 2026-07-06 2026-09-05 ok
otel.us.testlify.com 3 2026-07-23 2026-09-21 ok
app.us.testlify.com 5 2026-05-14 2026-09-15 ok
bullmq.us.testlify.com 5 2026-05-24 2026-09-21 ok
integrations.us.testlify.com 5 2026-05-29 2026-09-08 ok
audit.us.testlify.com 1 2026-08-26 2026-08-26 ok
preview.us.testlify.com 3 2026-07-20 2026-09-18 ok
openreplay.us.testlify.com 5 2026-07-09 2026-09-11 ok
metabase-aus.testlify.com 2 2026-06-05 2026-06-05 ok
docs.audit.testlify.com 3 2026-06-23 2026-08-25 ok
trust.testlify.com 5 2026-05-03 2026-09-01 ok
argocd.au.testlify.com 4 2026-04-17 2026-08-15 ok
backoffice.au.testlify.com 4 2026-04-17 2026-08-15 ok
integrations.au.testlify.com 4 2026-04-28 2026-06-27 ok
argocd.eu.testlify.com 5 2026-04-25 2026-09-11 ok
metabase.eu.testlify.com 2 2026-07-04 2026-07-04 nxdomain
persona-api.eu.testlify.com 5 2026-04-27 2026-09-11 ok
rundeck.eu.testlify.com 3 2026-07-08 2026-09-06 ok
integrations.eu.testlify.com 5 2026-05-29 2026-09-26 ok
cv.testlify.com 4 2026-04-11 2026-08-09 ok
review.testlify.com 12 2026-04-26 2026-09-15 ok
qa-review.testlify.com 1 2026-09-11 2026-09-11 ok
preview.testlify.com 1 2026-08-11 2026-08-11 ok
*.preview.testlify.com 1 2026-08-11 2026-08-11 —
mailcoach-new.testlify.com 7 2026-06-02 2026-10-01 ok
www.testlify.com 11 2026-04-28 2026-08-04 ok
sql.codex.testlify.com 5 2026-05-24 2026-09-21 ok
openreplay.testlify.com 5 2026-05-15 2026-09-11 ok
ksa.openreplay.testlify.com 5 2026-05-20 2026-09-11 ok
usa.openreplay.testlify.com 5 2026-05-21 2026-09-11 ok

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