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.

17 hosts · 262 ms

HostCertsFirst seenLast seenDNS
zerodha.com 14 2025-11-17 2026-09-17 ok
*.zerodha.com 14 2025-11-17 2026-09-17 —
fd.zerodha.com 1 2025-11-17 2025-11-17 ok
www.fd.zerodha.com 1 2025-11-17 2025-11-17 nxdomain
smallcase.zerodha.com 1 2026-06-03 2026-06-03 ok
www.smallcase.zerodha.com 1 2026-06-03 2026-06-03 nodata
thebigperspective.zerodha.com 13 2026-04-21 2026-08-18 ok
thedailybrief.zerodha.com 12 2026-04-21 2026-08-18 ok
streak.zerodha.com 3 2026-05-26 2026-09-13 ok
sensibull.zerodha.com 8 2026-04-07 2026-08-23 ok
dr.zerodha.com 1 2026-05-20 2026-05-20 nodata
*.dr.zerodha.com 1 2026-05-20 2026-05-20 —
cashier.zerodha.com 1 2026-02-20 2026-02-20 ok
www.cashier.zerodha.com 1 2026-02-20 2026-02-20 nxdomain
algorunner.zerodha.com 1 2026-09-28 2026-09-28 ok
thechatter.zerodha.com 10 2026-05-03 2026-08-30 ok
aftermarketreport.zerodha.com 8 2026-05-03 2026-08-29 ok

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