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.

19 hosts · 211 ms

HostCertsFirst seenLast seen
luminaire.fr 5 2026-05-24 2026-09-21
xtg.luminaire.fr 9 2026-05-18 2026-09-14
professional.luminaire.fr 11 2026-06-09 2026-10-05
go.luminaire.fr 5 2026-04-19 2026-06-18
pro.luminaire.fr 5 2026-05-04 2026-09-01
link.shop.pro.luminaire.fr 5 2026-05-17 2026-09-14
collector.sst.pro.luminaire.fr 4 2026-04-13 2026-08-11
www.pro.luminaire.fr 5 2026-05-04 2026-09-01
link.reply.pro.luminaire.fr 5 2026-05-17 2026-09-14
phkhcp.luminaire.fr 3 2026-05-16 2026-10-08
lp.luminaire.fr 5 2026-06-04 2026-10-03
link.shop.luminaire.fr 3 2026-07-14 2026-09-12
stop.luminaire.fr 5 2026-05-03 2026-08-31
sms.luminaire.fr 5 2026-05-03 2026-08-31
news.luminaire.fr 4 2026-04-18 2026-08-15
support.luminaire.fr 14 2026-04-22 2026-08-18
collector.sst.luminaire.fr 4 2026-04-13 2026-08-11
sav.luminaire.fr 5 2026-05-09 2026-09-06
www.luminaire.fr 5 2026-05-24 2026-09-21

Programmatic access: API GET /v1/hosts/luminaire.fr (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/luminaire.fr.