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.

13 hosts · 366 ms

HostCertsFirst seenLast seenDNS
thebase.in 8 2025-07-27 2026-09-11 ok
*.thebase.in 13 2025-07-27 2026-09-11 —
odawara2026.thebase.in 2 2026-03-13 2026-03-13 ok
cart-alb.thebase.in 2 2026-03-22 2026-08-22 ok
ekyc.thebase.in 1 2026-03-06 2026-03-06 ok
cloudflare-wildcard.thebase.in 10 2026-04-22 2026-08-19 ok
cname.thebase.in 8 2026-04-21 2026-08-17 ok
devblog.thebase.in 7 2025-12-03 2026-09-29 ok
cardapi.thebase.in 3 2026-03-20 2026-08-20 ok
cloudflare-fallback.thebase.in 12 2026-04-22 2026-08-18 ok
help.thebase.in 5 2026-05-26 2026-09-23 ok
googleads-app.thebase.in 3 2026-05-07 2026-08-25 ok
docs.thebase.in 5 2026-04-24 2026-08-22 ok

Programmatic access, with DNS A records: API GET /v1/hosts/thebase.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/thebase.in.