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.

16 hosts · 349 ms

HostCertsFirst seenLast seenDNS
monportefeuilleplus.ca 3 2026-01-29 2026-08-24 ok
ia.monportefeuilleplus.ca 3 2026-01-29 2026-08-24 ok
content.ia.monportefeuilleplus.ca 12 2025-11-11 2026-09-24 ok
ppa.monportefeuilleplus.ca 8 2025-12-12 2026-08-24 ok
ia-ppa.monportefeuilleplus.ca 8 2025-12-12 2026-08-24 ok
content.ia-ppa.monportefeuilleplus.ca 12 2025-11-11 2026-09-24 ok
content.ppa.monportefeuilleplus.ca 12 2025-11-11 2026-09-24 nxdomain
orion-api-pprod.monportefeuilleplus.ca 8 2025-12-12 2026-08-24 ok
ia.orion-api-pprod.monportefeuilleplus.ca 9 2025-09-09 2026-08-24 ok
orion-api.monportefeuilleplus.ca 3 2026-01-29 2026-08-24 ok
ia.orion-api.monportefeuilleplus.ca 4 2025-09-09 2026-08-24 ok
metrics-pp.monportefeuilleplus.ca 9 2025-06-11 2026-08-19 ok
metrics.monportefeuilleplus.ca 5 2025-06-11 2026-08-24 ok
iiroc.investments.apis.monportefeuilleplus.ca 12 2026-01-19 2026-08-24 ok
iiroc-pp.investments.apis.monportefeuilleplus.ca 9 2025-12-12 2026-08-24 ok
content.monportefeuilleplus.ca 12 2025-11-11 2026-09-24 ok

Programmatic access, with DNS A records: API GET /v1/hosts/monportefeuilleplus.ca (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/monportefeuilleplus.ca.