cnrs.fr

Checked 22 October 2026, 02:22 UTC · via 8.8.8.8
!Passed with warnings
26 passed 1 warning 0 failed 4 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
camus.dr15.cnrs.fr, ns0.cnrs.fr, ns1.renater.fr, ns2.cnrs.fr, ns2.renater.fr, ns3.cnrs.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

camus.dr15.cnrs.fr, ns0.cnrs.fr, ns1.renater.fr, ns2.cnrs.fr, ns2.renater.fr, ns3.cnrs.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
camus.dr15.cnrs.fr, ns0.cnrs.fr, ns1.renater.fr, ns2.cnrs.fr, ns2.renater.fr, ns3.cnrs.fr
NS in the zone
camus.dr15.cnrs.fr, ns0.cnrs.fr, ns1.renater.fr, ns2.cnrs.fr, ns2.renater.fr, ns3.cnrs.fr
NameserverAddressesNetwork (AS)Glue
camus.dr15.cnrs.fr147.210.72.192 2001:660:6101:21::1AS2202 FR-RENATER-REAUMUR - Renater, EU AS2200 FR-RENATER - Renater, FR147.210.72.192 2001:660:6101:21::1
ns0.cnrs.fr195.220.197.10 2001:660:500a:2210::10AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR195.220.197.10 2001:660:500a:2210::10
ns1.renater.fr193.49.159.2 2001:660:3001:4002::2AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR193.49.159.2 2001:660:3001:4002::2
ns2.cnrs.fr193.52.36.172 2001:660:500a:2103::10AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR193.52.36.172 2001:660:500a:2103::10
ns2.renater.fr193.49.159.9 2001:660:3001:4002::9AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR193.49.159.9 2001:660:3001:4002::9
ns3.cnrs.fr193.55.90.12 2001:660:6608:5106::12AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR193.55.90.12 2001:660:6608:5106::12

Checks

  • ✓ 6 nameservers #6
    Delegated to camus.dr15.cnrs.fr, ns0.cnrs.fr, ns1.renater.fr, ns2.cnrs.fr, ns2.renater.fr, ns3.cnrs.fr.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: camus.dr15.cnrs.fr, ns0.cnrs.fr, ns2.cnrs.fr, ns3.cnrs.fr.
  • ✓ 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 4 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS2200 (FR-RENATER - Renater, FR): 11 addresses; AS2202 (FR-RENATER-REAUMUR - Renater, EU): 1 address.
  • 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
camus.dr15.cnrs.fr 147.210.72.192NOERROR, 29 ms, authoritativenoyes / yesrefused-
camus.dr15.cnrs.fr 2001:660:6101:21::1NOERROR, 27 ms, authoritativenoyes / yesrefused-
ns0.cnrs.fr 195.220.197.10NOERROR, 18 ms, authoritativenoyes / yesrefused-
ns0.cnrs.fr 2001:660:500a:2210::10NOERROR, 19 ms, authoritativenoyes / yesrefused-
ns1.renater.fr 193.49.159.2NOERROR, 18 ms, authoritativenoyes / yesrefused-
ns1.renater.fr 2001:660:3001:4002::2NOERROR, 19 ms, authoritativenoyes / yesrefused-
ns2.cnrs.fr 193.52.36.172NOERROR, 18 ms, authoritativenoyes / yesrefused-
ns2.cnrs.fr 2001:660:500a:2103::10NOERROR, 19 ms, authoritativenoyes / yesrefused-
ns2.renater.fr 193.49.159.9NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns2.renater.fr 2001:660:3001:4002::9NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns3.cnrs.fr 193.55.90.12NOERROR, 26 ms, authoritativenoyes / yesrefused-
ns3.cnrs.fr 2001:660:6608:5106::12NOERROR, 26 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 12 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

pass

serial 2026102104 · primary ns0.cnrs.fr

Found

Primary (MNAME)
ns0.cnrs.fr
Contact (RNAME)
dnsmaster.dsi.cnrs.fr
Serial
2026102104
Refresh / retry
21600 s / 3600 s
Expire
3600000 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
camus.dr15.cnrs.fr (147.210.72.192)2026102104
camus.dr15.cnrs.fr (2001:660:6101:21::1)2026102104
ns0.cnrs.fr (195.220.197.10)2026102104
ns0.cnrs.fr (2001:660:500a:2210::10)2026102104
ns1.renater.fr (193.49.159.2)2026102104
ns1.renater.fr (2001:660:3001:4002::2)2026102104
ns2.cnrs.fr (193.52.36.172)2026102104
ns2.cnrs.fr (2001:660:500a:2103::10)2026102104
ns2.renater.fr (193.49.159.9)2026102104
ns2.renater.fr (2001:660:3001:4002::9)2026102104
ns3.cnrs.fr (193.55.90.12)2026102104
ns3.cnrs.fr (2001:660:6608:5106::12)2026102104

Checks

  • ✓ Serial 2026102104 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 1h, expire 1000h, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns0.cnrs.fr is one of the listed nameservers.
  • ✓ Contact dnsmaster@dsi.cnrs.fr #25
    The SOA RNAME dnsmaster.dsi.cnrs.fr means dnsmaster@dsi.cnrs.fr.
  • ✓ Date-based serial #26
    The serial 2026102104 follows the YYYYMMDDnn convention (2026-10-21).

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

15 records at the apex

Found

Read from
147.210.72.192:53
TypeValueTTL
SOAns0.cnrs.fr. dnsmaster.dsi.cnrs.fr. 2026102104 21600 3600 3600000 3003600
NSns0.cnrs.fr.3600
NSns1.renater.fr.3600
NSns3.cnrs.fr.3600
NScamus.dr15.cnrs.fr.3600
NSns2.cnrs.fr.3600
NSns2.renater.fr.3600
A80.94.184.703600
MX10 mx2.cnrs.fr.3600
MX10 mx1.cnrs.fr.3600
TXT"MS=ms16083841"3600
TXT"mistral-domain-verification=c884e548015a04a5998f1763f7b7982880020409"3600
TXT"v=spf1 redirect=spf.cnrs.fr"3600
TXT"MS=ms17956212"3600
TXT"google-site-verification=qWY8PmYbh-vNEyRqC7s0yQ4996TRtOcxSIwGgW6okyM"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, 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