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.

31 hosts · 376 ms

HostCertsFirst seenLast seenDNS
chowsangsang.com 4 2025-12-08 2026-01-14 ok
*.chowsangsang.com 9 2025-12-08 2026-09-29 —
gzdcsbc01.chowsangsang.com 1 2026-02-10 2026-02-10 ok
www.gzdcsbc01.chowsangsang.com 1 2026-02-10 2026-02-10 nxdomain
gzdcsbc02.chowsangsang.com 1 2026-02-10 2026-02-10 ok
www.gzdcsbc02.chowsangsang.com 1 2026-02-10 2026-02-10 nxdomain
hkeshopprod.chowsangsang.com 5 2026-05-14 2026-09-11 ok
mcprod.hkeshopprod.chowsangsang.com 5 2026-05-14 2026-09-11 ok
uxprototype.chowsangsang.com 5 2026-08-31 2026-09-01 ok
hkeshopstaging.chowsangsang.com 5 2026-05-05 2026-09-02 ok
mcstaging.hkeshopstaging.chowsangsang.com 5 2026-05-05 2026-09-02 ok
tracking.chowsangsang.com 12 2026-05-27 2026-09-23 ok
sbc2-wh.chowsangsang.com 1 2025-12-03 2025-12-03 ok
www.sbc2-wh.chowsangsang.com 1 2025-12-03 2025-12-03 nxdomain
sbc-wh.chowsangsang.com 1 2025-12-03 2025-12-03 ok
www.sbc-wh.chowsangsang.com 1 2025-12-03 2025-12-03 nxdomain
sami.chowsangsang.com 2 2026-04-20 2026-08-12 ok
photosearch-api.chowsangsang.com 1 2026-01-26 2026-01-26 nxdomain
css-smartlock.chowsangsang.com 5 2026-04-26 2026-08-22 ok
psp-hk.chowsangsang.com 2 2026-06-09 2026-06-09 ok
pspuat-hk.chowsangsang.com 2 2026-06-09 2026-06-09 ok
fs-crm.chowsangsang.com 5 2026-05-24 2026-09-21 ok
imagegen.chowsangsang.com 2 2026-03-18 2026-07-11 ok
smartmeter.chowsangsang.com 1 2026-02-10 2026-02-10 nxdomain
www.smartmeter.chowsangsang.com 1 2026-02-10 2026-02-10 ok
tracking-marketplaces.chowsangsang.com 14 2026-05-26 2026-09-22 ok
ipyjxs.chowsangsang.com 4 2026-05-17 2026-10-03 ok
loyaltywechat.chowsangsang.com 1 2026-08-05 2026-08-05 ok
css-smartlockuat.chowsangsang.com 5 2026-05-03 2026-09-02 ok
loyaltywechatuat.chowsangsang.com 3 2026-07-22 2026-09-20 ok
samidev.chowsangsang.com 2 2026-04-20 2026-08-12 ok

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