cnda.fr

Checked 22 October 2026, 02:21 UTC · via 8.8.8.8
iAll checks passed
30 passed 0 warnings 0 failed 5 info

Registration

info

.fr country-code · NAMESHIELD · expires 2027-03-22

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
NAMESHIELD
Registered
29 July 2008
Last changed
18 June 2026
Expires
22 March 2027
Status
client transfer prohibited
Registry nameservers
a.ns.developpement-durable.gouv.fr, b.ns.developpement-durable.gouv.fr, nsa.perf1.fr, nsb.perf1.com, nsc.perf1.com
RDAP server
https://rdap.nic.fr/

Checks

  • i
    .fr is a country-code TLD (ccTLD)
    Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.
    #1
  • ✓ TLD delegated and signed #2
    .fr is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2027-03-22 #3
    The registration is valid until 2027-03-22 (151 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

a.ns.developpement-durable.gouv.fr, b.ns.developpement-durable.gouv.fr, nsa.perf1.fr, nsb.perf1.com, nsc.perf1.com

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
a.ns.developpement-durable.gouv.fr, b.ns.developpement-durable.gouv.fr, nsa.perf1.fr, nsb.perf1.com, nsc.perf1.com
NS in the zone
a.ns.developpement-durable.gouv.fr, b.ns.developpement-durable.gouv.fr, nsa.perf1.fr, nsb.perf1.com, nsc.perf1.com
NameserverAddressesNetwork (AS)Glue
a.ns.developpement-durable.gouv.fr194.5.172.19AS60855 DISIC-RIE-AS - LA DIRECTION INTERMINISTERIELLE DU NUMERIQUE, FR194.5.172.19
b.ns.developpement-durable.gouv.fr194.5.173.19AS60855 DISIC-RIE-AS - LA DIRECTION INTERMINISTERIELLE DU NUMERIQUE, FR194.5.173.19
nsa.perf1.fr81.92.94.100 2a01:c8:100::100AS20756 NAMESHIELD - NAMESHIELD SAS, FR AS20756 NAMESHIELD - NAMESHIELD SAS, FR81.92.94.100 2a01:c8:100::100
nsb.perf1.com81.92.95.100 2a01:c8:101::100AS20756 NAMESHIELD - NAMESHIELD SAS, FR AS20756 NAMESHIELD - NAMESHIELD SAS, FR-
nsc.perf1.com152.89.172.100 2a09:35c0:102::100AS209510 NAMESHIELDGRP - NAMESHIELD SAS, FR AS209510 NAMESHIELDGRP - NAMESHIELD SAS, FR-

Checks

  • ✓ 5 nameservers #6
    Delegated to a.ns.developpement-durable.gouv.fr, b.ns.developpement-durable.gouv.fr, nsa.perf1.fr, nsb.perf1.com, nsc.perf1.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 5 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS20756 (NAMESHIELD - NAMESHIELD SAS, FR): 4 addresses; AS209510 (NAMESHIELDGRP - NAMESHIELD SAS, FR): 2 addresses; AS60855 (DISIC-RIE-AS - LA DIRECTION INTERMINISTERIELLE DU NUMERIQUE, FR): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .fr.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: a.ns.developpement-durable.gouv.fr, b.ns.developpement-durable.gouv.fr.
    #13

Nameservers

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a.ns.developpement-durable.gouv.fr 194.5.172.19NOERROR, 26 ms, authoritativenoyes / yesrefusedunavailable
b.ns.developpement-durable.gouv.fr 194.5.173.19NOERROR, 26 ms, authoritativenoyes / yesrefusedunavailable
nsa.perf1.fr 81.92.94.100NOERROR, 4 ms, authoritativenoyes / yesrefusedSecure
nsa.perf1.fr 2a01:c8:100::100NOERROR, 4 ms, authoritativenoyes / yesrefusedSecure
nsb.perf1.com 81.92.95.100NOERROR, 4 ms, authoritativenoyes / yesrefusedSecure
nsb.perf1.com 2a01:c8:101::100NOERROR, 4 ms, authoritativenoyes / yesrefusedSecure
nsc.perf1.com 152.89.172.100NOERROR, 5 ms, authoritativenoyes / yesrefusedSecure
nsc.perf1.com 2a09:35c0:102::100NOERROR, 5 ms, authoritativenoyes / yesrefusedSecure

Checks

  • ✓ All respond #14
    All 8 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: a.ns.developpement-durable.gouv.fr: "unavailable"; b.ns.developpement-durable.gouv.fr: "unavailable"; nsa.perf1.fr: "Secure"; nsb.perf1.com: "Secure"; nsc.perf1.com: "Secure".
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2026102201 · primary a.ns.developpement-durable.gouv.fr

Found

Primary (MNAME)
a.ns.developpement-durable.gouv.fr
Contact (RNAME)
gestiondnstech.conseil-etat.fr
Serial
2026102201
Refresh / retry
14400 s / 3600 s
Expire
3000000 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
a.ns.developpement-durable.gouv.fr (194.5.172.19)2026102201
b.ns.developpement-durable.gouv.fr (194.5.173.19)2026102201
nsa.perf1.fr (81.92.94.100)2026102201
nsa.perf1.fr (2a01:c8:100::100)2026102201
nsb.perf1.com (81.92.95.100)2026102201
nsb.perf1.com (2a01:c8:101::100)2026102201
nsc.perf1.com (152.89.172.100)2026102201
nsc.perf1.com (2a09:35c0:102::100)2026102201

Checks

  • ✓ Serial 2026102201 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 50000m, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a.ns.developpement-durable.gouv.fr is one of the listed nameservers.
  • ✓ Contact gestiondnstech@conseil-etat.fr #25
    The SOA RNAME gestiondnstech.conseil-etat.fr means gestiondnstech@conseil-etat.fr.
  • ✓ Date-based serial #26
    The serial 2026102201 follows the YYYYMMDDnn convention (2026-10-22).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
5 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
31873ECDSAP256SHA256 (13)SHA256 F41391788369F43D…NO
18898ECDSAP256SHA256 (13)SHA256 098ECECDF6A8D17F…yes

DNSKEY in the zone

Key tagRoleAlgorithm
18898KSK (257)ECDSAP256SHA256 (13)
50167ZSK (256)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • i
    Unused DS records
    These DS records match no key in the zone: key tag 31873 (SHA256). That is normal during a key rollover; otherwise remove them.
    #28
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-05 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-05 00:00 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

info

8 records at the apex

Found

Read from
194.5.172.19:53
TypeValueTTL
SOAa.ns.developpement-durable.gouv.fr. gestiondnstech.conseil-etat.fr. 2026102201 14400 3600 3000000 360024000
NSnsc.perf1.com.3600
NSnsb.perf1.com.3600
NSnsa.perf1.fr.3600
NSb.ns.developpement-durable.gouv.fr.3600
NSa.ns.developpement-durable.gouv.fr.3600
TXT"google-site-verification=JJd3VdCv6mAq2bXvy4kkA6402j1W02IGpBRIGfyR0FM"3600
TXT"v=spf1 -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: NS 1h.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35