cmbv.fr

Checked 22 October 2026, 02:20 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 6 info

Registration

info

.fr country-code · VIADUC · expires 2027-01-02

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
VIADUC
Registered
2 January 2007
Last changed
28 April 2026
Expires
2 January 2027
Status
active
Registry nameservers
ns1.viaduc-dns.fr, ns2.viaduc-dns.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 2027-01-02 #3
    The registration is valid until 2027-01-02 (72 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.viaduc-dns.fr, ns2.viaduc-dns.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns1.viaduc-dns.fr, ns2.viaduc-dns.fr
NS in the zone
ns1.viaduc-dns.fr, ns2.viaduc-dns.fr
NameserverAddressesNetwork (AS)Glue
ns1.viaduc-dns.fr5.135.106.7AS16276 OVH - OVH SAS, FR-
ns2.viaduc-dns.fr212.83.158.15AS12876 AS12876 - Scaleway SAS, FR-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.viaduc-dns.fr, ns2.viaduc-dns.fr.
    #6
  • ✓ 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.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12876 (AS12876 - Scaleway SAS, FR): 1 address; AS16276 (OVH - OVH SAS, FR): 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.viaduc-dns.fr 5.135.106.7NOERROR, 15 ms, authoritativenoyes / yesrefused-
ns2.viaduc-dns.fr 212.83.158.15NOERROR, 13 ms, authoritativenoyes / yesrefused-

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.
  • ✓ 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

info

serial 2026102201 · primary ns-int.viaduc-dns.fr

Found

Primary (MNAME)
ns-int.viaduc-dns.fr
Contact (RNAME)
info.viaduc.fr
Serial
2026102201
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.viaduc-dns.fr (5.135.106.7)2026102201
ns2.viaduc-dns.fr (212.83.158.15)2026102201

Checks

  • ✓ Serial 2026102201 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
  • i
    Hidden master
    The primary nameserver ns-int.viaduc-dns.fr is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact info@viaduc.fr #25
    The SOA RNAME info.viaduc.fr means info@viaduc.fr.
  • ✓ Date-based serial #26
    The serial 2026102201 follows the YYYYMMDDnn convention (2026-10-22).

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

8 records at the apex

Found

Read from
5.135.106.7:53
TypeValueTTL
SOAns-int.viaduc-dns.fr. info.viaduc.fr. 2026102201 10800 3600 604800 3600300
NSns2.viaduc-dns.fr.300
NSns1.viaduc-dns.fr.300
A83.228.234.1043600
AAAA2001:1600:16:11::4bc3600
MX1 cmbv-fr.mail.protection.outlook.com.300
TXT"MS=ms40777603"3600
TXT"v=spf1 a mx ip4:195.15.253.249 ip4:83.228.234.104 ip6:2001:1600:16:11::4bc ip6:2001:1600:10:100::c51 include:spf.viaduc.fr include:spf.mailjet.com include:spf.protection.outlook.com -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 1h, MX 5m, NS 5m. The NS TTL at the parent is 1h and in the zone 5m; 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