cnes.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
dns.univ-lyon1.fr, hal.cerfacs.fr, tu-dnsext-p01.cnes.fr, tu-dnsext-p02.cnes.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

warn

dns.univ-lyon1.fr, hal.cerfacs.fr, tu-dnsext-p01.cnes.fr, tu-dnsext-p02.cnes.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns.univ-lyon1.fr, hal.cerfacs.fr, tu-dnsext-p01.cnes.fr, tu-dnsext-p02.cnes.fr
NS in the zone
tu-dnsext-p01.cnes.fr, tu-dnsext-p02.cnes.fr
NameserverAddressesNetwork (AS)Glue
dns.univ-lyon1.fr (parent only)134.214.100.6 2001:660:5001:100::6AS2060 FR-RENATER - Renater, EU AS2200 FR-RENATER - Renater, FR134.214.100.6 2001:660:5001:100::6
hal.cerfacs.fr (parent only)138.63.200.15AS1715 FR-REMIP2000 - Renater, FR138.63.200.15
tu-dnsext-p01.cnes.fr132.149.107.225AS2450 UNSPECIFIED - Renater, EU132.149.107.225
tu-dnsext-p02.cnes.fr132.149.107.226AS2450 UNSPECIFIED - Renater, EU132.149.107.226

Checks

  • ✓ 4 nameservers #6
    Delegated to dns.univ-lyon1.fr, hal.cerfacs.fr, tu-dnsext-p01.cnes.fr, tu-dnsext-p02.cnes.fr.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: dns.univ-lyon1.fr, hal.cerfacs.fr. dns.univ-lyon1.fr, hal.cerfacs.fr, tu-dnsext-p01.cnes.fr, tu-dnsext-p02.cnes.fr report NS tu-dnsext-p01.cnes.fr tu-dnsext-p02.cnes.fr.
    #7
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: tu-dnsext-p01.cnes.fr, tu-dnsext-p02.cnes.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 3 IPv4 /24s and 1 IPv6 /48.
  • ✓ 4 autonomous systems #11
    The nameservers are spread over: AS1715 (FR-REMIP2000 - Renater, FR): 1 address; AS2060 (FR-RENATER - Renater, EU): 1 address; AS2200 (FR-RENATER - Renater, FR): 1 address; AS2450 (UNSPECIFIED - Renater, EU): 2 addresses.
  • 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: hal.cerfacs.fr, tu-dnsext-p01.cnes.fr, tu-dnsext-p02.cnes.fr.
    #13

Nameservers

info

5 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns.univ-lyon1.fr 134.214.100.6NOERROR, 17 ms, authoritativenoyes / yesrefused-
dns.univ-lyon1.fr 2001:660:5001:100::6NOERROR, 23 ms, authoritativenoyes / yesrefused-
hal.cerfacs.fr 138.63.200.15NOERROR, 28 ms, authoritativenoyes / yesrefusedKSR X
tu-dnsext-p01.cnes.fr 132.149.107.225NOERROR, 25 ms, authoritativenoyes / yesrefusedCNES
tu-dnsext-p02.cnes.fr 132.149.107.226NOERROR, 25 ms, authoritativenoyes / yesrefusedCNES

Checks

  • ✓ All respond #14
    All 5 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: hal.cerfacs.fr: "KSR X"; tu-dnsext-p01.cnes.fr: "CNES"; tu-dnsext-p02.cnes.fr: "CNES".
    #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 2024103959 · primary tu-dnsext-p01.cnes.fr

Found

Primary (MNAME)
tu-dnsext-p01.cnes.fr
Contact (RNAME)
hostmaster.cnes.fr
Serial
2024103959
Refresh / retry
7200 s / 1800 s
Expire
2592000 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
dns.univ-lyon1.fr (134.214.100.6)2024103959
dns.univ-lyon1.fr (2001:660:5001:100::6)2024103959
hal.cerfacs.fr (138.63.200.15)2024103959
tu-dnsext-p01.cnes.fr (132.149.107.225)2024103959
tu-dnsext-p02.cnes.fr (132.149.107.226)2024103959

Checks

  • ✓ Serial 2024103959 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 30m, expire 30d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver tu-dnsext-p01.cnes.fr is one of the listed nameservers.
  • ✓ Contact hostmaster@cnes.fr #25
    The SOA RNAME hostmaster.cnes.fr means hostmaster@cnes.fr.
  • ✓ Timestamp serial #26
    The serial 2024103959 is a Unix timestamp (2034-02-21 03:05 UTC).

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

21 records at the apex

Found

Read from
134.214.100.6:53
TypeValueTTL
SOAtu-dnsext-p01.cnes.fr. hostmaster.cnes.fr. 2024103959 7200 1800 2592000 90086400
NStu-dnsext-p02.cnes.fr.86400
NStu-dnsext-p01.cnes.fr.86400
A34.110.177.24386400
MX10 mx20.cnes.fr.1800
MX10 mx10.cnes.fr.1800
TXT"brevo-code:a22aaeac5992ba1666bb7ca52bca40a3"300
TXT"brevo-code:4b52d62c616d80d6c697205a530e44bd"300
TXT"OSSRH-78320"300
TXT"brevo-code:ffba51551388ab05f2f73455fea3f87f"300
TXT"v=spf1 mx ip4:212.166.58.154 ip4:91.212.205.179 ip4:91.207.20.141/30 ip4:131.176.49.67 ip4:192.171.5.18 ip4:195.5.231.138 ip4:194.199.175.202/31 ip4:178.32.232.65 mx:gtd.eu mx:u-psud.fr" " mx:akka.eu mx:c-s.fr mx:mail.ovh.net include:spf.protection.outlook.com -all"300
TXT"google-site-verification=vPhthLDctCTAMO0dKLJadcZYF-_tN7Y_2xKdoWmpSe8"300
TXT"XrrsYrKAI/kEffnxea6yBhjNTTRCLGK0LjAEn6zWApEVqG7y6RHWeHjS381fi/bLCkm/amFORWZ7+xNTh1odWQ=="300
TXT"HARICA-RWTgdXvSGLeRBvzNtet"300
TXT"v=DKIM1;k=rsa;" "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCug6U7/wBw/IAaLckUe5pJpr93N1zp6odx05DgX71s4pc4URVzVpjfgbTAlZ1foLPLZYHkP+Usema96Ay1CVqcse8G+xjSexNYFUGqxkIwKJT9e6jSGvDFfPuU/pliyVI+zNVE9zdc8xVO7bxbZKgey1D07sc8wj3ojmqkOufe+wIDAQAB"300
TXT"brevo-code:f89bea56ba076f60f531616433b027be"300
TXT"MS=ms55643959"300
TXT"adobe-idp-site-verification=eae75b18086e3b11c5ff4b00b1b0818cf4116bd374b026d7a41cfebff8d66fa5"300
TXT"brevo-code:fe6b8e37149e6e372c1c876ebc038baf"300
TXT"facebook-domain-verification=v4reuzft75xthy54miqeigpk141bj3"300
TXT"did=did:plc:it5xcvzbz2lofmoocvgakupq"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 30m, NS 1d. The NS TTL at the parent is 1h and in the zone 1d; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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