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.

18 hosts · 534 ms

HostCertsFirst seenLast seenDNS
hike-footwear.com 3 2026-06-05 2026-08-05 ok
seniorsday2026.hike-footwear.com 7 2026-07-28 2026-09-25 ok
ccc.hike-footwear.com 4 2026-04-09 2026-08-13 ok
article.hike-footwear.com 7 2026-06-12 2026-09-20 ok
track.hike-footwear.com 1 2026-08-20 2026-08-20 ok
go.hike-footwear.com 4 2026-05-28 2026-09-25 ok
coo.hike-footwear.com 3 2026-08-17 2026-09-25 ok
offers.hike-footwear.com 17 2026-05-31 2026-09-08 ok
customers.hike-footwear.com 15 2026-05-14 2026-09-14 ok
account.hike-footwear.com 18 2026-04-13 2026-10-01 ok
checkout.hike-footwear.com 4 2026-05-27 2026-09-24 ok
adv.hike-footwear.com 10 2026-04-19 2026-08-15 ok
view.hike-footwear.com 3 2026-06-16 2026-08-24 ok
www.hike-footwear.com 5 2026-06-05 2026-08-05 ok
pay.hike-footwear.com 1 2026-06-15 2026-06-15 ok
longevity.hike-footwear.com 15 2026-05-27 2026-09-27 ok
buy.hike-footwear.com 7 2026-06-20 2026-09-27 ok
quiz.hike-footwear.com 10 2026-05-17 2026-09-12 ok

Programmatic access, with DNS A records: API GET /v1/hosts/hike-footwear.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/hike-footwear.com.