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.

29 hosts · 223 ms

HostCertsFirst seenLast seen
sezane.com 8 2025-09-09 2026-10-10
*.sezane.com 8 2025-09-09 2026-10-10
media.sezane.com 8 2025-07-15 2026-09-19
data.sezane.com 4 2025-08-11 2026-09-16
backoffice.sezane.com 2 2025-09-09 2026-08-10
backoffice-refonte.sezane.com 2 2025-09-09 2026-08-10
auth.sezane.com 2 2025-12-13 2025-12-14
api.sezane.com 2 2026-02-27 2026-07-15
flow-internal.sezane.com 2 2025-07-24 2026-06-24
retail.sezane.com 1 2026-01-19 2026-01-19
planif-retail.sezane.com 1 2026-10-05 2026-10-05
nao.sezane.com 1 2026-09-29 2026-09-29
shop.sezane.com 1 2025-11-28 2025-11-28
erp.sezane.com 2 2025-07-19 2026-06-18
api.tr.sezane.com 1 2025-12-07 2025-12-07
evs.tr.sezane.com 1 2025-12-07 2025-12-07
mta-sts.sezane.com 1 2025-11-26 2025-11-26
status.sezane.com 5 2026-05-16 2026-09-12
cloud.news.sezane.com 2 2026-01-27 2026-01-27
image.news.sezane.com 4 2025-08-12 2026-09-10
click.news.sezane.com 1 2026-01-27 2026-01-27
view.news.sezane.com 1 2026-01-27 2026-01-27
account.sezane.com 2 2025-09-14 2026-08-15
gpt.sezane.com 1 2026-02-03 2026-02-03
ext.sezane.com 6 2026-05-03 2026-09-30
flow.sezane.com 2 2026-04-12 2026-09-12
metaflow.sezane.com 2 2025-09-24 2026-08-25
www.sezane.com 4 2025-11-09 2026-10-10
gallery.sezane.com 1 2025-12-29 2025-12-29

Programmatic access: API GET /v1/hosts/sezane.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/sezane.com.