rezo-rm.fr

Checked 22 October 2026, 05:02 UTC · via 8.8.8.8
!Passed with warnings
23 passed 3 warnings 0 failed 5 info

Registration

info

.fr country-code · OVH · expires 2027-03-08

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
OVH
Registered
8 March 2021
Last changed
30 April 2026
Expires
8 March 2027
Status
active
Registry nameservers
dns.rezo-rm.fr, dns2.rezo-rm.fr, dns3.rezo-rm.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 2027-03-08 #3
    The registration is valid until 2027-03-08 (137 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.rezo-rm.fr, dns2.rezo-rm.fr, dns3.rezo-rm.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns.rezo-rm.fr, dns2.rezo-rm.fr, dns3.rezo-rm.fr
NS in the zone
dns.rezo-rm.fr, dns2.rezo-rm.fr, dns3.rezo-rm.fr
NameserverAddressesNetwork (AS)Glue
dns.rezo-rm.fr193.54.193.40AS2200 FR-RENATER - Renater, FR193.54.193.40
dns2.rezo-rm.fr193.54.193.41AS2200 FR-RENATER - Renater, FR193.54.193.41
dns3.rezo-rm.fr193.48.225.29AS2200 FR-RENATER - Renater, FR193.48.225.29

Checks

  • ✓ 3 nameservers #6
    Delegated to dns.rezo-rm.fr, dns2.rezo-rm.fr, dns3.rezo-rm.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: dns.rezo-rm.fr, dns2.rezo-rm.fr, dns3.rezo-rm.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 2 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS2200 (FR-RENATER - Renater, FR): 3 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

warn

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns.rezo-rm.fr 193.54.193.40NOERROR, 20 ms, authoritativenoyes / yesrefusedKnot DNS 3.0.5
dns2.rezo-rm.fr 193.54.193.41NOERROR, 20 ms, authoritativenoyes / yesrefusedKnot DNS 3.2.6
dns3.rezo-rm.fr 193.48.225.29NOERROR, 21 ms, authoritativenoyes / yesrefusedKnot DNS 3.2.6

Checks

  • ✓ All respond #14
    All 3 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: dns.rezo-rm.fr: "Knot DNS 3.0.5"; dns2.rezo-rm.fr: "Knot DNS 3.2.6"; dns3.rezo-rm.fr: "Knot DNS 3.2.6". Hide or replace the version string.
    #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 1792526794 · primary dns.rezo-rm.fr

Found

Primary (MNAME)
dns.rezo-rm.fr
Contact (RNAME)
monitoring.rezo-rm.fr
Serial
1792526794
Refresh / retry
86400 s / 7200 s
Expire
3600000 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns.rezo-rm.fr (193.54.193.40)1792526794
dns2.rezo-rm.fr (193.54.193.41)1792526794
dns3.rezo-rm.fr (193.48.225.29)1792526794

Checks

  • ✓ Serial 1792526794 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 2h, expire 1000h, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns.rezo-rm.fr is one of the listed nameservers.
  • ✓ Contact monitoring@rezo-rm.fr #25
    The SOA RNAME monitoring.rezo-rm.fr means monitoring@rezo-rm.fr.
  • ✓ Timestamp serial #26
    The serial 1792526794 is a Unix timestamp (2026-10-20 20:06 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

7 records at the apex

Found

Read from
193.54.193.40:53
TypeValueTTL
SOAdns.rezo-rm.fr. monitoring.rezo-rm.fr. 1792526794 86400 7200 3600000 36003600
NSdns.rezo-rm.fr.3600
NSdns2.rezo-rm.fr.3600
NSdns3.rezo-rm.fr.3600
A193.48.225.713600
MX10 mail.rezo-rm.fr.3600
TXT"v=spf1 a mx ip4:193.48.225.37 ~all"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