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.

45 hosts · 297 ms

HostCertsFirst seenLast seenDNS
kotakalert.bank.in 1 2026-05-11 2026-05-11 nodata
elink.mail.kotakalert.bank.in 62 2025-10-28 2026-09-24 ok
www.elink.mail.kotakalert.bank.in 2 2025-10-28 2026-09-24 nxdomain
delivery.mail.kotakalert.bank.in 5 2026-08-10 2026-10-03 ok
m1.email.kotakalert.bank.in 2 2025-11-10 2026-08-10 ok
res1.email.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
t1.email.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
m2.email.kotakalert.bank.in 2 2025-11-10 2026-08-10 ok
res2.email.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
t2.email.kotakalert.bank.in 2 2025-11-10 2026-08-10 ok
m3.email.kotakalert.bank.in 2 2025-11-10 2026-08-10 ok
res3.email.kotakalert.bank.in 2 2025-11-10 2026-08-10 ok
t3.email.kotakalert.bank.in 2 2025-11-10 2026-08-10 ok
tracking.email.kotakalert.bank.in 3 2026-07-18 2026-09-15 ok
m.email.kotakalert.bank.in 2 2025-11-10 2026-08-10 ok
res.email.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
t.email.kotakalert.bank.in 4 2025-11-10 2026-08-10 ok
m1.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
res1.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
t1.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
m2.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
res2.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
t2.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
m3.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
res3.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
t3.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
web.info.kotakalert.bank.in 2 2026-08-10 2026-08-10 ok
m.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
res.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
t.info.kotakalert.bank.in 1 2026-08-10 2026-08-10 ok
m1.emails.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
res1.emails.kotakalert.bank.in 2 2025-11-23 2026-08-10 ok
t1.emails.kotakalert.bank.in 2 2025-11-23 2026-08-10 ok
m2.emails.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
res2.emails.kotakalert.bank.in 2 2025-11-23 2026-08-10 ok
t2.emails.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
m3.emails.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
res3.emails.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
t3.emails.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
tracking.emails.kotakalert.bank.in 3 2026-07-18 2026-09-15 ok
m.emails.kotakalert.bank.in 3 2025-11-10 2026-08-10 ok
res.emails.kotakalert.bank.in 2 2025-11-23 2026-08-10 ok
t.emails.kotakalert.bank.in 3 2025-11-23 2026-08-10 ok
tracking.alerts.kotakalert.bank.in 3 2026-07-15 2026-09-12 ok
tracking.alert.kotakalert.bank.in 3 2026-07-15 2026-09-12 ok

Programmatic access, with DNS A records: API GET /v1/hosts/kotakalert.bank.in (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/kotakalert.bank.in.