cnac-gp.fr

Checked 22 October 2026, 02:21 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 warnings 0 failed 7 info

Registration

info

.fr country-code · GIP RENATER · expires 2026-12-31

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
31 December 1994
Last changed
31 January 2026
Expires
31 December 2026
Status
active
Registry nameservers
maelzel.ircam.fr, nadia.ircam.fr, piston.ecp.fr, vaslav.ircam.fr
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 2026-12-31 #3
    The registration is valid until 2026-12-31 (70 days).
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

maelzel.ircam.fr, nadia.ircam.fr, piston.ecp.fr, vaslav.ircam.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
maelzel.ircam.fr, nadia.ircam.fr, piston.ecp.fr, vaslav.ircam.fr
NS in the zone
maelzel.ircam.fr, nadia.ircam.fr, piston.ecp.fr, vaslav.ircam.fr
NameserverAddressesNetwork (AS)Glue
maelzel.ircam.fr129.102.1.10 2001:660:3004:4000::10:53AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR129.102.1.10 2001:660:3004:4000::10:53
nadia.ircam.fr129.102.1.8 2001:660:3004:4000::8:53AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR129.102.1.8 2001:660:3004:4000::8:53
piston.ecp.fr138.195.33.3AS2200 FR-RENATER - Renater, FR-
vaslav.ircam.fr129.102.1.6 2001:660:3004:4000::6:53AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR129.102.1.6 2001:660:3004:4000::6:53

Checks

  • ✓ 4 nameservers #6
    Delegated to maelzel.ircam.fr, nadia.ircam.fr, piston.ecp.fr, vaslav.ircam.fr.
  • ✓ 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.
  • i
    One address family in one network
    all IPv6 addresses are in 2001:660:3004::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS2200 (FR-RENATER - Renater, FR): 7 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .fr
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • i
    Partly IPv6
    These nameservers have no IPv6 address: piston.ecp.fr.
    #13

Nameservers

pass

7 of 7 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
maelzel.ircam.fr 129.102.1.10NOERROR, 15 ms, authoritativenoyes / yesrefused-
maelzel.ircam.fr 2001:660:3004:4000::10:53NOERROR, 15 ms, authoritativenoyes / yesrefused-
nadia.ircam.fr 129.102.1.8NOERROR, 14 ms, authoritativenoyes / yesrefused-
nadia.ircam.fr 2001:660:3004:4000::8:53NOERROR, 14 ms, authoritativenoyes / yesrefused-
piston.ecp.fr 138.195.33.3NOERROR, 21 ms, authoritativenoyes / yesrefused-
vaslav.ircam.fr 129.102.1.6NOERROR, 14 ms, authoritativenoyes / yesrefused-
vaslav.ircam.fr 2001:660:3004:4000::6:53NOERROR, 14 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 7 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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

warn

serial 2021062405 · primary maelzel.ircam.fr

Found

Primary (MNAME)
maelzel.ircam.fr
Contact (RNAME)
manager.maelzel.ircam.fr
Serial
2021062405
Refresh / retry
21600 s / 3600 s
Expire
3600000 s
Negative TTL
172800 s

Serial per nameserver

NameserverSerial
maelzel.ircam.fr (129.102.1.10)2021062405
maelzel.ircam.fr (2001:660:3004:4000::10:53)2021062405
nadia.ircam.fr (129.102.1.8)2021062405
nadia.ircam.fr (2001:660:3004:4000::8:53)2021062405
piston.ecp.fr (138.195.33.3)2021062405
vaslav.ircam.fr (129.102.1.6)2021062405
vaslav.ircam.fr (2001:660:3004:4000::6:53)2021062405

Checks

  • ✓ Serial 2021062405 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 2d is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 6h, retry 1h, expire 1000h, negative TTL 2d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver maelzel.ircam.fr is one of the listed nameservers.
  • ✓ Contact manager@maelzel.ircam.fr #25
    The SOA RNAME manager.maelzel.ircam.fr means manager@maelzel.ircam.fr.
  • ✓ Date-based serial #26
    The serial 2021062405 follows the YYYYMMDDnn convention (2021-06-24).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

5 records at the apex

Found

Read from
129.102.1.10:53
TypeValueTTL
SOAmaelzel.ircam.fr. manager.maelzel.ircam.fr. 2021062405 21600 3600 3600000 172800172800
NSmaelzel.ircam.fr.172800
NSvaslav.ircam.fr.172800
NSnadia.ircam.fr.172800
NSpiston.ecp.fr.172800

Checks

  • ✓ TTLs within range #32
    TTLs: NS 2d. The NS TTL at the parent is 1h and in the zone 2d; resolvers may use either.
  • ✓ 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