verdun.fr

Checked 22 October 2026, 05:41 UTC · via 8.8.8.8
!Passed with warnings
30 passed 2 warnings 0 failed 3 info

Registration

info

.fr country-code · SCALEWAY · expires 2027-09-13

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
SCALEWAY
Registered
29 June 2004
Last changed
6 September 2026
Expires
13 September 2027
Status
client transfer prohibited
Registry nameservers
dns1.mdr-services.fr, dns2.mdr-services.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 2027-09-13 #3
    The registration is valid until 2027-09-13 (326 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

dns1.mdr-services.fr, dns2.mdr-services.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns1.mdr-services.fr, dns2.mdr-services.fr
NS in the zone
dns1.mdr-services.fr, dns2.mdr-services.fr
NameserverAddressesNetwork (AS)Glue
dns1.mdr-services.fr51.159.198.253 2001:bc8:1203:172::AS12876 AS12876 - Scaleway SAS, FR AS12876 AS12876 - Scaleway SAS, FR51.159.198.253 2001:bc8:1203:172::
dns2.mdr-services.fr178.170.38.26 2a00:c70:1:178:170:38:26:1AS21409 IKOULA - Ikoula Net SAS, FR AS21409 IKOULA - Ikoula Net SAS, FR178.170.38.26 2a00:c70:1:178:170:38:26:1

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns1.mdr-services.fr, dns2.mdr-services.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 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12876 (AS12876 - Scaleway SAS, FR): 2 addresses; AS21409 (IKOULA - Ikoula Net SAS, FR): 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.mdr-services.fr 51.159.198.253NOERROR, 12 ms, authoritativenoyes / yesrefused-
dns1.mdr-services.fr 2001:bc8:1203:172::NOERROR, 19 ms, authoritativenoyes / yesrefused-
dns2.mdr-services.fr 178.170.38.26NOERROR, 19 ms, authoritativenoyes / yesrefused-
dns2.mdr-services.fr 2a00:c70:1:178:170:38:26:1NOERROR, 19 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 4 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 2026092702 · primary dns1.mdr-services.fr

Found

Primary (MNAME)
dns1.mdr-services.fr
Contact (RNAME)
postmaster.au12.info
Serial
2026092702
Refresh / retry
3600 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns1.mdr-services.fr (51.159.198.253)2026092702
dns1.mdr-services.fr (2001:bc8:1203:172::)2026092702
dns2.mdr-services.fr (178.170.38.26)2026092702
dns2.mdr-services.fr (2a00:c70:1:178:170:38:26:1)2026092702

Checks

  • ✓ Serial 2026092702 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 7d, negative TTL 1h.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.mdr-services.fr is one of the listed nameservers.
  • ✓ Contact postmaster@au12.info #25
    The SOA RNAME postmaster.au12.info means postmaster@au12.info.
  • ✓ Date-based serial #26
    The serial 2026092702 follows the YYYYMMDDnn convention (2026-09-27).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 8-byte salt
Signatures valid until
26 December 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
16570ECDSAP256SHA256 (13)SHA256 896B1A2FD5B23628…yes

DNSKEY in the zone

Key tagRoleAlgorithm
17326ZSK (256)ECDSAP256SHA256 (13)
16570KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 16570 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-12-26 #30
    The earliest DNSKEY/SOA signature expires at 2026-12-26 05:47 UTC.
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 0 iterations and a 8-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.
    #31

Records

pass

15 records at the apex

Found

Read from
51.159.198.253:53
TypeValueTTL
SOAdns1.mdr-services.fr. postmaster.au12.info. 2026092702 3600 3600 604800 36003600
NSdns2.mdr-services.fr.3600
NSdns1.mdr-services.fr.3600
A62.210.149.1373600
AAAA2001:bc8:1203:b9::3600
MX5 ALT2.ASPMX.L.GOOGLE.COM.3600
MX10 ALT4.ASPMX.L.GOOGLE.COM.3600
MX5 ALT1.ASPMX.L.GOOGLE.COM.3600
MX1 ASPMX.L.GOOGLE.COM.3600
MX10 ALT3.ASPMX.L.GOOGLE.COM.3600
TXT"v=spf1 a mx include:_dedie15.au12.info include:_spf.google.com include:_spf.au12.info ~all"3600
TXT"google-site-verification=FCAqALei1lIRs4EICxiN9OCJ4swEACV0CQMs9WCpraY"3600
TXT"google-site-verification=dpLSfC_fF1h56Q_ouUrsVHXurswqgUT0PE1_n6p3vOQ"3600
TXT"google-site-verification=eUg8G85o79-w6km7fwfk0nJMrx9OHjNrTzEGQHhJYHg"3600
CAA0 issue "letsencrypt.org"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: letsencrypt.org.