greyc.fr

Checked 22 October 2026, 03:16 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 warnings 0 failed 7 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-02-12

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
12 March 2007
Last changed
31 March 2026
Expires
12 February 2027
Status
active
Registry nameservers
ns1.unicaen.fr, vps-unicaen.unicaen.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 2027-02-12 #3
    The registration is valid until 2027-02-12 (113 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.unicaen.fr, vps-unicaen.unicaen.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns1.unicaen.fr, vps-unicaen.unicaen.fr
NS in the zone
ns1.unicaen.fr, vps-meteosi.unicaen.fr, vps-unicaen.unicaen.fr
NameserverAddressesNetwork (AS)Glue
ns1.unicaen.fr193.55.120.200AS2200 FR-RENATER - Renater, FR193.55.120.200
vps-meteosi.unicaen.fr (zone only)51.91.249.67 2001:41d0:305:2100::a1a4AS16276 OVH - OVH SAS, FR AS16276 OVH - OVH SAS, FR-
vps-unicaen.unicaen.fr51.210.107.144 2001:41d0:304:200::14dfAS16276 OVH - OVH SAS, FR AS16276 OVH - OVH SAS, FR51.210.107.144 2001:41d0:304:200::14df

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.unicaen.fr, vps-unicaen.unicaen.fr.
    #6
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: vps-meteosi.unicaen.fr. ns1.unicaen.fr, vps-meteosi.unicaen.fr, vps-unicaen.unicaen.fr report NS ns1.unicaen.fr vps-meteosi.unicaen.fr vps-unicaen.unicaen.fr.
    #7
  • ✓ 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 3 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS16276 (OVH - OVH SAS, FR): 4 addresses; AS2200 (FR-RENATER - Renater, 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns1.unicaen.fr.
    #13

Nameservers

info

5 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.unicaen.fr 193.55.120.200NOERROR, 17 ms, authoritativenoyes / yesrefusedunknown
vps-meteosi.unicaen.fr 51.91.249.67NOERROR, 16 ms, authoritativenoyes / yesrefusedunknown
vps-meteosi.unicaen.fr 2001:41d0:305:2100::a1a4NOERROR, 16 ms, authoritativenoyes / yesrefusedunknown
vps-unicaen.unicaen.fr 51.210.107.144NOERROR, 16 ms, authoritativenoyes / yesrefusedunknown
vps-unicaen.unicaen.fr 2001:41d0:304:200::14dfNOERROR, 16 ms, authoritativenoyes / yesrefusedunknown

Checks

  • ✓ All respond #14
    All 5 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: ns1.unicaen.fr: "unknown"; vps-meteosi.unicaen.fr: "unknown"; vps-unicaen.unicaen.fr: "unknown".
    #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

warn

serial 2026101600 · primary ns1.unicaen.fr

Found

Primary (MNAME)
ns1.unicaen.fr
Contact (RNAME)
dnsmaster.unicaen.fr
Serial
2026101600
Refresh / retry
86401 s / 3600 s
Expire
3600000 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.unicaen.fr (193.55.120.200)2026101600
vps-meteosi.unicaen.fr (51.91.249.67)2026101600
vps-meteosi.unicaen.fr (2001:41d0:305:2100::a1a4)2026101600
vps-unicaen.unicaen.fr (51.210.107.144)2026101600
vps-unicaen.unicaen.fr (2001:41d0:304:200::14df)2026101600

Checks

  • ✓ Serial 2026101600 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 24h0m1s is outside 20m–1d. Current values: refresh 24h0m1s, retry 1h, expire 1000h, negative TTL 1d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.unicaen.fr is one of the listed nameservers.
  • ✓ Contact dnsmaster@unicaen.fr #25
    The SOA RNAME dnsmaster.unicaen.fr means dnsmaster@unicaen.fr.
  • ✓ Date-based serial #26
    The serial 2026101600 follows the YYYYMMDDnn convention (2026-10-16).

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

11 records at the apex

Found

Read from
193.55.120.200:53
TypeValueTTL
SOAns1.unicaen.fr. dnsmaster.unicaen.fr. 2026101600 86401 3600 3600000 8640086400
NSvps-meteosi.unicaen.fr.86400
NSvps-unicaen.unicaen.fr.86400
NSns1.unicaen.fr.86400
A193.55.120.2686400
MX50 mx2.relay.renater.fr.300
MX50 mx1.relay.renater.fr.300
TXT"lunar-verification=055f5adb-1dc0-482b-8ec7-5fedd30d4b79"1800
TXT"google-site-verification=tPZXoUokVOmhesPC4EdgYt1rcbY5H0ILzmmEVABavtg"1800
TXT"HARICA-gpyxb6aHqPsZPfBue1a"1800
TXT"v=spf1 include:unicaen.fr ~all"1800

Checks

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