langres.fr

Checked 22 October 2026, 03:43 UTC · via 8.8.8.8
!Passed with warnings
23 passed 3 warnings 0 failed 5 info

Registration

info

.fr country-code · CYLLENE ITS · expires 2027-07-27

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
CYLLENE ITS
Registered
13 October 2003
Last changed
31 August 2026
Expires
27 July 2027
Status
active
Registry nameservers
ns1.cetsi.fr, ns2.cetsi.eu, ns3.cetsi.info
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 2027-07-27 #3
    The registration is valid until 2027-07-27 (277 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

ns1.cetsi.fr, ns2.cetsi.eu, ns3.cetsi.info

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns1.cetsi.fr, ns2.cetsi.eu, ns3.cetsi.info
NS in the zone
ns1.cetsi.fr, ns2.cetsi.eu, ns3.cetsi.info
NameserverAddressesNetwork (AS)Glue
ns1.cetsi.fr91.151.64.234 2a00:ef60:0:64::234AS12826 CYLLENE-ITS - CYLLENE ITS SAS, FR AS12826 CYLLENE-ITS - CYLLENE ITS SAS, FR91.151.64.234
ns2.cetsi.eu91.151.65.234 2a00:ef60:0:65::234AS12826 CYLLENE-ITS - CYLLENE ITS SAS, FR AS12826 CYLLENE-ITS - CYLLENE ITS SAS, FR-
ns3.cetsi.info91.151.77.234 2a00:ef60:0:701::234AS12826 CYLLENE-ITS - CYLLENE ITS SAS, FR AS12826 CYLLENE-ITS - CYLLENE ITS SAS, FR-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.cetsi.fr, ns2.cetsi.eu, ns3.cetsi.info.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns1.cetsi.fr (glue 91.151.64.234, zone 91.151.64.234, 2a00:ef60:0:64::234). Update the glue at your registrar.
    #8
  • ✓ 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 2a00:ef60::/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 (AS12826 (CYLLENE-ITS - CYLLENE ITS SAS, FR): 6 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .eu, .fr, .info.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.cetsi.fr 91.151.64.234NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns1.cetsi.fr 2a00:ef60:0:64::234NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns2.cetsi.eu 91.151.65.234NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns2.cetsi.eu 2a00:ef60:0:65::234NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns3.cetsi.info 91.151.77.234NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns3.cetsi.info 2a00:ef60:0:701::234NOERROR, 13 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 6 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 2023070796 · primary ns1.cetsi.fr

Found

Primary (MNAME)
ns1.cetsi.fr
Contact (RNAME)
postmaster.cetsi.fr
Serial
2023070796
Refresh / retry
1800 s / 3600 s
Expire
1209600 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
ns1.cetsi.fr (91.151.64.234)2023070796
ns1.cetsi.fr (2a00:ef60:0:64::234)2023070796
ns2.cetsi.eu (91.151.65.234)2023070796
ns2.cetsi.eu (2a00:ef60:0:65::234)2023070796
ns3.cetsi.info (91.151.77.234)2023070796
ns3.cetsi.info (2a00:ef60:0:701::234)2023070796

Checks

  • ✓ Serial 2023070796 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1h should be shorter than refresh 30m. Current values: refresh 30m, retry 1h, expire 14d, negative TTL 3h.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.cetsi.fr is one of the listed nameservers.
  • ✓ Contact postmaster@cetsi.fr #25
    The SOA RNAME postmaster.cetsi.fr means postmaster@cetsi.fr.
  • ✓ Date-based serial #26
    The serial 2023070796 follows the YYYYMMDDnn convention (2023-07-07).

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

10 records at the apex

Found

Read from
91.151.64.234:53
TypeValueTTL
SOAns1.cetsi.fr. postmaster.cetsi.fr. 2023070796 1800 3600 1209600 108003600
NSns3.cetsi.info.3600
NSns2.cetsi.eu.3600
NSns1.cetsi.fr.3600
A80.247.235.1323600
MX1 mailhost.langres.fr.3600
TXT"v=spf1 mx mx:mailhost.langres.fr ip4:185.61.189.242 ip4:94.24.31.127 ip4:94.24.31.125 include:spf.jobaffinity.fr -all"300
TXT"MS=A018EB30CC8CB29CB9D0A02F152C4846090AF63D"300
TXT"google-gws-recovery-domain-verification=69394640"300
TXT"google-site-verification=5aiZEEA7dhz8IcQ9PNFrYd5Xi7j1XwY3M7rFHAASCLI" ""300

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