Find every subdomain
of a domain.

Every hostname under a domain that ever appeared in a public TLS certificate — with certificate counts and first/last seen dates.

23 hosts · 169 ms

HostCertsFirst seenLast seen
newegg.ca 14 2025-12-23 2026-09-23
*.newegg.ca 10 2025-12-23 2026-09-23
kb.newegg.ca 4 2026-04-29 2026-09-15
secure.newegg.ca 4 2026-04-29 2026-09-15
e11stgtest-secure.newegg.ca 3 2026-06-02 2026-08-20
e11stgtest-secure-m.newegg.ca 3 2026-06-02 2026-08-20
e11stgtest-m.newegg.ca 3 2026-06-02 2026-08-20
secure.m.newegg.ca 5 2025-12-23 2026-09-15
e11ssltestm.newegg.ca 3 2026-06-02 2026-08-20
i.promo.newegg.ca 12 2026-06-08 2026-10-05
l.promo.newegg.ca 10 2026-05-17 2026-09-12
s.promo.newegg.ca 8 2026-05-18 2026-09-13
w.promo.newegg.ca 6 2026-05-17 2026-09-12
x.promo.newegg.ca 13 2026-05-25 2026-09-20
help.newegg.ca 4 2026-04-29 2026-09-15
e11ssltestp.newegg.ca 3 2026-06-02 2026-08-20
e11wwwtestp.newegg.ca 3 2026-06-02 2026-08-20
metrics.newegg.ca 3 2026-05-16 2026-08-29
promotions.newegg.ca 4 2026-04-29 2026-09-15
e11stgtest.newegg.ca 3 2026-06-02 2026-08-20
e11ssltest.newegg.ca 3 2026-06-02 2026-08-20
e11wwwtest.newegg.ca 3 2026-06-02 2026-08-20
www.newegg.ca 4 2026-04-29 2026-09-15

Programmatic access: API GET /v1/hosts/newegg.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/newegg.ca.