centre-cired.fr

Checked 22 October 2026, 02:10 UTC · via 8.8.8.8
✗Problems found
20 passed 3 warnings 1 failed 7 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-03-18

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
18 March 1998
Last changed
30 April 2026
Expires
18 March 2027
Status
active
Registry nameservers
ciredms.centre-cired.fr, polaris.centre-cired.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 2027-03-18 #3
    The registration is valid until 2027-03-18 (147 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

ciredms.centre-cired.fr, polaris.centre-cired.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ciredms.centre-cired.fr, polaris.centre-cired.fr
NS in the zone
ciredms.centre-cired.fr, polaris.centre-cired.fr
NameserverAddressesNetwork (AS)Glue
ciredms.centre-cired.fr193.51.120.1AS2200 FR-RENATER - Renater, FR193.51.120.1
polaris.centre-cired.fr193.51.120.2AS2200 FR-RENATER - Renater, FR193.51.120.2

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ciredms.centre-cired.fr, polaris.centre-cired.fr.
    #6
  • ✓ 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: ciredms.centre-cired.fr, polaris.centre-cired.fr.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • !
    Nameservers in one network
    all IPv4 addresses are in 193.51.120.0/24. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS2200 (FR-RENATER - Renater, FR): 2 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

fail

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ciredms.centre-cired.fr 193.51.120.1NOERROR, 14 ms, authoritativenoyes / yesrefusedunknown
polaris.centre-cired.fr 193.51.120.2NOERROR, 14 ms, authoritativenoyes / yesALLOWED (16 records)unknown

Checks

  • ✓ All respond #14
    All 2 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: ciredms.centre-cired.fr: "unknown"; polaris.centre-cired.fr: "unknown".
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: polaris.centre-cired.fr (193.51.120.2): 16 records. Restrict zone transfers to your secondary servers.
    #18
  • ✓ 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 2025112001 · primary ciredms.centre-cired.fr

Found

Primary (MNAME)
ciredms.centre-cired.fr
Contact (RNAME)
chaabane.centre-cired.fr
Serial
2025112001
Refresh / retry
14400 s / 3600 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ciredms.centre-cired.fr (193.51.120.1)2025112001
polaris.centre-cired.fr (193.51.120.2)2025112001

Checks

  • ✓ Serial 2025112001 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ciredms.centre-cired.fr is one of the listed nameservers.
  • ✓ Contact chaabane@centre-cired.fr #25
    The SOA RNAME chaabane.centre-cired.fr means chaabane@centre-cired.fr.
  • ✓ Date-based serial #26
    The serial 2025112001 follows the YYYYMMDDnn convention (2025-11-20).

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

7 records at the apex

Found

Read from
193.51.120.1:53
TypeValueTTL
SOAciredms.centre-cired.fr. chaabane.centre-cired.fr. 2025112001 14400 3600 604800 864003600
NSciredms.centre-cired.fr.3600
NSpolaris.centre-cired.fr.3600
MX0 centrecired-fr01e.mail.protection.outlook.com.3600
TXT"v=spf1 include:spf.protection.outlook.com -all"3600
TXT"MS=92C61BF4BA63D0A83176B4CACF03F82B8E9541D1"3600
TXT"MS=ms19216299"3600

Checks

  • ✓ TTLs within range #32
    TTLs: 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