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.

40 hosts · 149 ms

HostCertsFirst seenLast seen
synergie.fr 3 2026-03-13 2026-08-24
media.synergie.fr 6 2025-10-29 2026-09-27
symphonie.synergie.fr 11 2025-11-24 2026-10-08
api.symphonie.synergie.fr 11 2025-11-24 2026-10-08
auth.api.symphonie.synergie.fr 10 2025-12-08 2026-10-08
www.symphonie.synergie.fr 6 2025-11-24 2026-10-08
manuel-qualite.synergie.fr 7 2025-10-29 2026-09-27
www.livre-blanc-btp-2025-2-prevention-securite.synergie.fr 10 2026-05-13 2026-09-09
www.livre-blanc-btp-2025-prevention-securite.synergie.fr 8 2026-04-30 2026-08-27
learning.synergie.fr 8 2026-06-06 2026-10-04
img.marketing.synergie.fr 9 2026-05-24 2026-09-19
r.marketing.synergie.fr 4 2026-05-07 2026-07-26
bsmi.synergie.fr 8 2025-10-29 2026-09-27
api.synergie.fr 10 2026-04-28 2026-10-06
*.api.synergie.fr 1 2026-04-28 2026-04-28
recette.api.synergie.fr 1 2025-08-19 2025-08-19
auth.api.synergie.fr 1 2026-10-06 2026-10-06
webhook.api.synergie.fr 6 2026-05-18 2026-10-06
dev.api.synergie.fr 1 2025-08-19 2025-08-19
splk.synergie.fr 1 2025-11-19 2025-11-19
img.mail.synergie.fr 8 2026-06-08 2026-10-04
r.mail.synergie.fr 4 2026-05-13 2026-08-01
salon.synergie.fr 6 2026-05-18 2026-09-27
www.livre-blanc-2026-peak-season.synergie.fr 2 2026-10-07 2026-10-07
auth-horizon.synergie.fr 1 2026-03-04 2026-03-04
api-horizon.synergie.fr 5 2026-03-04 2026-08-05
bo.horizon.synergie.fr 6 2026-05-18 2026-09-27
bo.synergie.fr 5 2026-05-18 2026-09-27
www.guide-pratique-2026-emploi-saisonnier.synergie.fr 9 2026-05-23 2026-09-18
www.confirmation-conservation-donnees-personnelles.synergie.fr 10 2026-04-12 2026-10-07
www.entreprises.synergie.fr 8 2026-04-17 2026-08-13
www.livre-blanc-2026-feminisation-des-metiers.synergie.fr 5 2026-07-29 2026-09-26
connect.synergie.fr 7 2026-02-17 2026-10-04
cet.synergie.fr 3 2026-05-30 2026-08-04
www.cet.synergie.fr 5 2026-05-18 2026-10-04
readsoft.synergie.fr 3 2026-03-09 2026-08-20
www.fin-annee-2025-recrutement.synergie.fr 6 2026-04-29 2026-08-25
chatbot.synergie.fr 5 2026-05-18 2026-09-27
www.livre-blanc-btp-2025-prevention-securite-rdv.synergie.fr 10 2026-04-30 2026-08-26
www.synergie.fr 6 2026-05-18 2026-09-27

Programmatic access: API GET /v1/hosts/synergie.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/synergie.fr.