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.

6 hosts · 337 ms

HostCertsFirst seenLast seenDNS
mercadolibre.com.sv 8 2025-10-17 2026-09-30 ok
*.mercadolibre.com.sv 8 2025-10-17 2026-09-30 —
*.realtime-prod.mercadolibre.com.sv 3 2026-03-25 2026-08-25 —
realtime.mercadolibre.com.sv 1 2025-07-03 2025-07-03 nxdomain
*.realtime.mercadolibre.com.sv 1 2025-07-03 2025-07-03 —
*.realtime-dev.mercadolibre.com.sv 1 2026-02-16 2026-02-16 —

Programmatic access, with DNS A records: API GET /v1/hosts/mercadolibre.com.sv (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/mercadolibre.com.sv.