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.

76 hosts · 602 ms

HostCertsFirst seenLast seenDNS
steadily.com 160 2026-04-16 2026-09-29 ok
*.steadily.com 26 2026-04-17 2026-09-29 —
*.us-west-2.infra.steadily.com 10 2026-06-03 2026-09-29 —
us-west-2.data.steadily.com 1 2025-07-10 2025-07-10 nxdomain
*.us-west-2.data.steadily.com 1 2025-07-10 2025-07-10 —
*.lb.steadily.com 25 2026-06-26 2026-09-24 —
static.steadily.com 6 2026-04-16 2026-08-12 ok
ld.steadily.com 5 2026-07-22 2026-09-28 ok
*.us-west-2.prod.steadily.com 19 2026-04-27 2026-09-29 —
share.steadily.com 6 2026-04-13 2026-08-10 ok
insure.steadily.com 6 2026-05-21 2026-09-16 ok
locate.steadily.com 8 2026-06-01 2026-09-27 ok
*.locate.steadily.com 8 2026-06-01 2026-09-27 —
quote.steadily.com 10 2026-04-22 2026-08-29 ok
*.quote.steadily.com 6 2026-07-01 2026-08-29 —
quote-cf.steadily.com 2 2026-06-23 2026-06-23 nxdomain
*.quote-cf.steadily.com 2 2026-06-23 2026-06-23 —
lender-cf.steadily.com 2 2026-06-23 2026-06-23 nxdomain
*.lender-cf.steadily.com 2 2026-06-23 2026-06-23 —
agent-cf.steadily.com 2 2026-06-23 2026-06-23 nxdomain
*.agent-cf.steadily.com 2 2026-06-23 2026-06-23 —
pay-cf.steadily.com 2 2026-06-23 2026-06-23 nxdomain
*.pay-cf.steadily.com 2 2026-06-23 2026-06-23 —
*.staging.steadily.com 13 2026-04-11 2026-09-10 —
locate.staging.steadily.com 8 2026-05-29 2026-09-24 ok
*.locate.staging.steadily.com 8 2026-05-29 2026-09-24 —
quote.staging.steadily.com 9 2026-04-20 2026-08-22 ok
*.quote.staging.steadily.com 6 2026-06-24 2026-08-22 —
quote-cf.staging.steadily.com 2 2026-06-23 2026-06-23 nxdomain
*.quote-cf.staging.steadily.com 2 2026-06-23 2026-06-23 —
lender-cf.staging.steadily.com 2 2026-06-23 2026-06-23 nxdomain
*.lender-cf.staging.steadily.com 2 2026-06-23 2026-06-23 —
agent-cf.staging.steadily.com 2 2026-06-23 2026-06-23 nxdomain
*.agent-cf.staging.steadily.com 2 2026-06-23 2026-06-23 —
pay-cf.staging.steadily.com 2 2026-06-23 2026-06-23 nxdomain
*.pay-cf.staging.steadily.com 2 2026-06-23 2026-06-23 —
coveragecheck.staging.steadily.com 12 2026-05-26 2026-09-21 ok
lender.staging.steadily.com 8 2026-05-12 2026-08-22 ok
*.lender.staging.steadily.com 6 2026-06-24 2026-08-22 —
www.lender.staging.steadily.com 6 2026-04-27 2026-08-22 ok
*.www.lender.staging.steadily.com 4 2026-06-24 2026-08-22 —
partner.staging.steadily.com 2 2026-08-07 2026-08-07 ok
*.partner.staging.steadily.com 2 2026-08-07 2026-08-07 —
agent.staging.steadily.com 6 2026-05-30 2026-08-22 ok
*.agent.staging.steadily.com 4 2026-06-24 2026-08-22 —
pay.staging.steadily.com 8 2026-05-15 2026-08-22 ok
*.pay.staging.steadily.com 6 2026-06-24 2026-08-22 —
api.steadily.com 9 2026-04-27 2026-09-28 ok
tunetrack.steadily.com 9 2026-03-21 2026-08-22 ok
coveragecheck.steadily.com 12 2026-05-26 2026-09-21 ok
api-internal.steadily.com 9 2026-04-27 2026-09-28 ok
partnerportal.steadily.com 14 2026-04-15 2026-08-11 ok
agentportal.steadily.com 17 2026-04-15 2026-08-11 ok
mcp.steadily.com 9 2026-04-27 2026-09-28 ok
help.steadily.com 16 2026-05-11 2026-09-06 ok
app.steadily.com 9 2026-04-27 2026-09-28 ok
lender.steadily.com 8 2026-05-13 2026-08-29 ok
*.lender.steadily.com 6 2026-07-01 2026-08-29 —
www.lender.steadily.com 10 2026-04-25 2026-08-29 ok
*.www.lender.steadily.com 6 2026-07-01 2026-08-29 —
partner.steadily.com 12 2026-04-27 2026-08-28 ok
*.partner.steadily.com 4 2026-08-28 2026-08-28 —
ambassador.steadily.com 8 2026-04-13 2026-08-09 ok
partners.steadily.com 3 2026-03-21 2026-08-21 ok
prod.ingress.steadily.com 9 2026-04-27 2026-09-28 ok
staging.ingress.steadily.com 5 2026-04-11 2026-08-14 ok
assets.steadily.com 5 2025-12-09 2026-09-08 ok
t.steadily.com 6 2026-05-01 2026-08-27 ok
amb-snippet.steadily.com 8 2026-04-13 2026-08-09 ok
agent.steadily.com 8 2026-06-06 2026-08-29 ok
*.agent.steadily.com 6 2026-07-01 2026-08-29 —
passport.steadily.com 10 2026-05-01 2026-08-27 ok
*.us-west-2.test.steadily.com 15 2026-04-11 2026-09-29 —
www.steadily.com 10 2026-05-05 2026-08-31 ok
pay.steadily.com 8 2026-05-14 2026-08-29 ok
*.pay.steadily.com 6 2026-07-01 2026-08-29 —

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