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.

21 hosts · 224 ms

HostCertsFirst seenLast seenDNS
todaypay.me 15 2026-04-15 2026-10-01 ok
*.todaypay.me 11 2026-04-05 2026-10-01 —
resolve.todaypay.me 1 2026-08-19 2026-08-19 ok
api.todaypay.me 2 2026-04-05 2026-09-05 ok
legal.todaypay.me 11 2026-05-22 2026-09-18 ok
claim.todaypay.me 1 2026-04-02 2026-04-02 nxdomain
cdn.todaypay.me 2 2026-04-30 2026-09-30 ok
admin.todaypay.me 5 2026-05-21 2026-09-23 ok
demo.todaypay.me 11 2026-04-25 2026-08-22 ok
fp.todaypay.me 5 2026-04-15 2026-08-24 ok
customer.todaypay.me 5 2026-04-27 2026-08-28 ok
scripts.todaypay.me 1 2025-09-01 2025-09-01 nxdomain
merchant.todaypay.me 6 2026-05-30 2026-10-02 ok
www.todaypay.me 10 2026-04-15 2026-08-12 ok
resolve-sandbox.todaypay.me 1 2026-08-19 2026-08-19 ok
api-sandbox.todaypay.me 12 2026-04-06 2026-09-09 ok
claim-sandbox.todaypay.me 1 2026-04-02 2026-04-02 nxdomain
admin-sandbox.todaypay.me 6 2026-05-12 2026-09-23 ok
customer-sandbox.todaypay.me 5 2026-04-27 2026-08-29 ok
scripts-sandbox.todaypay.me 1 2025-09-01 2025-09-01 nxdomain
merchant-sandbox.todaypay.me 5 2026-05-08 2026-09-08 ok

Programmatic access, with DNS A records: API GET /v1/hosts/todaypay.me (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/todaypay.me.