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.

19 hosts · 399 ms

HostCertsFirst seenLast seenDNS
myportfolioplus.ca 3 2026-01-29 2026-08-24 ok
ia.myportfolioplus.ca 3 2026-01-29 2026-08-24 ok
content.ia.myportfolioplus.ca 12 2025-11-11 2026-09-24 ok
ppa.myportfolioplus.ca 8 2025-12-12 2026-08-24 ok
ia-ppa.myportfolioplus.ca 8 2025-12-12 2026-08-24 ok
content.ia-ppa.myportfolioplus.ca 12 2025-11-11 2026-09-24 ok
content.ppa.myportfolioplus.ca 12 2025-11-11 2026-09-24 nxdomain
orion-api-pprod.myportfolioplus.ca 8 2025-12-12 2026-08-24 ok
ia.orion-api-pprod.myportfolioplus.ca 9 2025-09-09 2026-08-24 ok
auth.myportfolioplus.ca 9 2026-02-18 2026-08-24 ok
orion-api.myportfolioplus.ca 3 2026-01-29 2026-08-24 ok
ia.orion-api.myportfolioplus.ca 4 2025-09-09 2026-08-24 ok
auth-ti.myportfolioplus.ca 9 2025-12-11 2026-08-24 ok
auth-pp.myportfolioplus.ca 9 2025-12-11 2026-08-24 ok
metrics-pp.myportfolioplus.ca 9 2025-06-11 2026-08-19 ok
metrics.myportfolioplus.ca 5 2025-06-11 2026-08-24 ok
iiroc.investments.apis.myportfolioplus.ca 12 2026-01-19 2026-08-24 ok
iiroc-pp.investments.apis.myportfolioplus.ca 9 2025-12-12 2026-08-24 ok
content.myportfolioplus.ca 12 2025-11-11 2026-09-24 ok

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