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 · 295 ms

HostCertsFirst seenLast seenDNS
topshop.com 9 2025-10-31 2026-09-25 ok
*.topshop.com 9 2025-10-31 2026-09-25 —
m.de.topshop.com 4 2026-05-21 2026-07-30 ok
www.de.topshop.com 4 2026-05-21 2026-07-30 ok
l.mail.topshop.com 4 2026-05-21 2026-07-30 ok
x.mail.topshop.com 4 2026-05-21 2026-07-30 ok
m.fr.topshop.com 4 2026-05-21 2026-07-30 ok
www.fr.topshop.com 4 2026-05-21 2026-07-30 ok
metrics.topshop.com 2 2026-01-18 2026-01-18 ok
www.careers.topshop.com 4 2026-05-21 2026-07-30 ok
m.us.topshop.com 4 2026-05-21 2026-07-30 ok
www.us.topshop.com 4 2026-05-21 2026-07-30 ok
eu.topshop.com 11 2026-04-16 2026-09-29 ok
m.eu.topshop.com 4 2026-05-21 2026-07-30 ok
account.eu.topshop.com 13 2026-05-10 2026-09-08 ok
www.eu.topshop.com 4 2026-05-21 2026-07-30 ok

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