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.

100 hosts (first page) · 527 ms

HostCertsFirst seenLast seenDNS
urssaf.fr 4 2025-10-01 2026-09-30 ok
*.urssaf.fr 3 2025-10-01 2026-09-02 —
dataviz-1.urssaf.fr 4 2026-03-18 2026-09-11 ok
staging-dataviz-1.urssaf.fr 3 2026-03-18 2026-09-11 ok
www.staging-dataviz-1.urssaf.fr 3 2026-03-18 2026-09-11 nxdomain
api-transverse-v1.urssaf.fr 1 2025-12-16 2025-12-16 ok
api-v1.urssaf.fr 1 2025-12-16 2025-12-16 ok
login-v1.urssaf.fr 1 2025-12-16 2025-12-16 ok
api-v2.urssaf.fr 3 2025-12-16 2026-08-20 ok
login-v2.urssaf.fr 2 2025-12-16 2026-08-20 ok
quoide9.urssaf.fr 1 2026-01-30 2026-01-30 ok
www.quoide9.urssaf.fr 1 2026-01-30 2026-01-30 ok
paca.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.paca.urssaf.fr 3 2026-01-30 2026-07-17 ok
cea.urssaf.fr 1 2026-06-04 2026-06-04 nodata
www1.cea.urssaf.fr 1 2026-06-04 2026-06-04 ok
www2.cea.urssaf.fr 1 2026-06-04 2026-06-04 ok
www.cea.urssaf.fr 1 2026-06-04 2026-06-04 ok
mon-ia.urssaf.fr 1 2026-04-01 2026-04-01 ok
www.mon-ia.urssaf.fr 1 2026-04-01 2026-04-01 nxdomain
edi-dla.urssaf.fr 1 2025-12-02 2025-12-02 ok
panorama.urssaf.fr 1 2026-05-05 2026-05-05 nxdomain
www.panorama.urssaf.fr 1 2026-05-05 2026-05-05 nxdomain
cesuextra.urssaf.fr 4 2025-09-02 2026-08-20 ok
www.cesuextra.urssaf.fr 4 2025-09-02 2026-08-20 ok
la-sdac.urssaf.fr 2 2026-03-09 2026-09-29 ok
matomo.la-sdac.urssaf.fr 1 2026-05-13 2026-05-13 ok
www.matomo.la-sdac.urssaf.fr 1 2026-05-13 2026-05-13 nxdomain
www.la-sdac.urssaf.fr 2 2026-03-09 2026-09-29 ok
rinadk-acoss-acc.urssaf.fr 1 2025-10-14 2025-10-14 nxdomain
jirared.urssaf.fr 3 2025-09-02 2026-08-20 nxdomain
www.jirared.urssaf.fr 3 2025-09-02 2026-08-20 nxdomain
eessi-rina-prod.urssaf.fr 1 2026-01-30 2026-01-30 nxdomain
www.eessi-rina-prod.urssaf.fr 1 2026-01-30 2026-01-30 nxdomain
preprod.urssaf.fr 1 2025-12-16 2025-12-16 nodata
*.preprod.urssaf.fr 2 2025-12-16 2026-05-28 —
api.preprod.urssaf.fr 1 2026-05-28 2026-05-28 ok
alsace.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.alsace.urssaf.fr 3 2026-01-30 2026-07-17 ok
link.service.urssaf.fr 1 2025-12-16 2025-12-16 ok
www.link.service.urssaf.fr 1 2025-12-16 2025-12-16 nxdomain
iledefrance.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.iledefrance.urssaf.fr 3 2026-01-30 2026-07-17 ok
mycompanyinfrance.urssaf.fr 3 2025-10-01 2026-09-09 nxdomain
www.mycompanyinfrance.urssaf.fr 3 2025-10-01 2026-09-09 nxdomain
tpee.urssaf.fr 1 2026-06-04 2026-06-04 ok
www.tpee.urssaf.fr 1 2026-06-04 2026-06-04 ok
cfe.urssaf.fr 1 2026-06-04 2026-06-04 nodata
www.cfe.urssaf.fr 1 2026-06-04 2026-06-04 ok
tfe.urssaf.fr 2 2026-02-03 2026-02-05 nodata
*.tfe.urssaf.fr 2 2026-02-03 2026-02-05 —
adage.urssaf.fr 3 2025-09-02 2026-08-20 nxdomain
www.adage.urssaf.fr 3 2025-09-02 2026-08-20 nxdomain
normandie.urssaf.fr 2 2026-01-30 2026-06-29 ok
www.normandie.urssaf.fr 2 2026-01-30 2026-06-29 nxdomain
picardie.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.picardie.urssaf.fr 3 2026-01-30 2026-07-17 ok
bretagne.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.bretagne.urssaf.fr 3 2026-01-30 2026-07-17 ok
bourgogne.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.bourgogne.urssaf.fr 3 2026-01-30 2026-07-17 ok
auvergne.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.auvergne.urssaf.fr 3 2026-01-30 2026-07-17 ok
lorraine.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.lorraine.urssaf.fr 3 2026-01-30 2026-07-17 ok
aquitaine.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.aquitaine.urssaf.fr 3 2026-01-30 2026-07-17 ok
champagne-ardenne.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.champagne-ardenne.urssaf.fr 3 2026-01-30 2026-07-17 ok
cgssguadeloupe.urssaf.fr 1 2026-07-17 2026-07-17 ok
www.cgssguadeloupe.urssaf.fr 1 2026-07-17 2026-07-17 nxdomain
questionnaire.urssaf.fr 1 2025-12-08 2025-12-08 ok
mta.questionnaire.urssaf.fr 6 2026-05-15 2026-09-12 ok
www.questionnaire.urssaf.fr 1 2025-12-08 2025-12-08 nxdomain
paysdelaloire.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.paysdelaloire.urssaf.fr 3 2026-01-30 2026-07-17 ok
centrevaldeloire.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.centrevaldeloire.urssaf.fr 3 2026-01-30 2026-07-17 ok
fortiauthpre.urssaf.fr 1 2025-10-20 2025-10-20 ok
*.letese.urssaf.fr 1 2026-05-05 2026-05-05 —
www1.33.letese.urssaf.fr 1 2026-05-05 2026-05-05 ok
www2.33.letese.urssaf.fr 1 2026-05-05 2026-05-05 ok
www1.75.letese.urssaf.fr 1 2026-05-05 2026-05-05 ok
www2.75.letese.urssaf.fr 1 2026-05-05 2026-05-05 ok
www1.69.letese.urssaf.fr 1 2026-05-05 2026-05-05 ok
www2.69.letese.urssaf.fr 1 2026-05-05 2026-05-05 ok
mon-entreprise.urssaf.fr 3 2025-10-01 2026-09-09 nxdomain
www.mon-entreprise.urssaf.fr 1 2026-07-01 2026-07-01 nxdomain
api-transverse.urssaf.fr 3 2025-09-02 2026-08-20 ok
corse.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.corse.urssaf.fr 3 2026-01-30 2026-07-17 ok
enquete.urssaf.fr 3 2025-11-03 2026-10-04 ok
img.send.enquete.urssaf.fr 9 2026-05-31 2026-09-27 ok
r.send.enquete.urssaf.fr 5 2026-04-26 2026-10-03 ok
unsubscribe.enquete.urssaf.fr 1 2026-06-04 2026-06-04 nxdomain
img.enquete.urssaf.fr 1 2026-06-04 2026-06-04 nxdomain
hubtr.enquete.urssaf.fr 1 2026-06-04 2026-06-04 nxdomain
franche-comte.urssaf.fr 3 2026-01-30 2026-07-17 ok
www.franche-comte.urssaf.fr 3 2026-01-30 2026-07-17 ok
due.urssaf.fr 1 2026-05-05 2026-05-05 nodata

Showing the first 100 hostnames — sign in with GitHub or Google to page the full list, or use the API with an API key: GET /v1/hosts/urssaf.fr.

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/urssaf.fr.