Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

7 hosts · 190 ms

HostCertsFirst seenLast seen
mahanagargas.com 4 2025-06-21 2026-07-06
*.mahanagargas.com 4 2026-02-16 2026-08-19
dma.mahanagargas.com 5 2026-05-30 2026-09-27
mail.mahanagargas.com 2 2025-06-21 2026-07-06
www.mail.mahanagargas.com 2 2025-06-21 2026-07-06
autodiscover.mahanagargas.com 2 2025-06-21 2026-07-06
gisars.mahanagargas.com 1 2026-01-30 2026-01-30

Programmatic access: API GET /v1/hosts/mahanagargas.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/mahanagargas.com.