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 · 304 ms

HostCertsFirst seenLast seenDNS
riversol.com 30 2026-04-26 2026-09-23 ok
*.riversol.com 8 2026-04-26 2026-09-22 —
capig.riversol.com 12 2026-05-14 2026-09-09 ok
api.riversol.com 2 2026-09-01 2026-09-01 ok
trial.riversol.com 16 2026-05-18 2026-09-26 ok
email.subscription.riversol.com 5 2026-05-02 2026-08-29 ok
amazon.riversol.com 8 2026-05-21 2026-09-17 ok
shop.riversol.com 17 2026-05-17 2026-09-26 ok
popup.riversol.com 4 2026-07-04 2026-09-01 ok
shop-popup.riversol.com 2 2026-08-22 2026-08-22 ok
*.shop-popup.riversol.com 2 2026-08-22 2026-08-22 —
*.popup.riversol.com 4 2026-07-04 2026-09-01 —
partners.riversol.com 1 2026-08-28 2026-08-28 ok
tracking.news.riversol.com 3 2026-06-26 2026-08-25 ok
account.riversol.com 4 2026-04-17 2026-08-14 ok
www.riversol.com 11 2026-05-16 2026-09-25 ok

Programmatic access, with DNS A records: API GET /v1/hosts/riversol.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/riversol.com.