prd.fr

Checked 22 October 2026, 04:52 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 6 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-01-11

Found

TLD
.fr (country-code)
Public suffix
.prd.fr
ICANN policies apply
no
Registrar
GIP RENATER
Registered
31 December 1994
Last changed
28 February 2026
Expires
11 January 2027
Status
active
Registry nameservers
ns1.renater.fr, ns2.renater.fr, ns4.cnrs.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. Domains are registered under the public suffix .prd.fr.
    #1
  • ✓ TLD delegated and signed #2
    .fr is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2027-01-11 #3
    The registration is valid until 2027-01-11 (81 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

info

ns1.renater.fr, ns2.renater.fr, ns4.cnrs.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns1.renater.fr, ns2.renater.fr, ns4.cnrs.fr
NS in the zone
ns1.renater.fr, ns2.renater.fr, ns4.cnrs.fr
NameserverAddressesNetwork (AS)Glue
ns1.renater.fr193.49.159.2 2001:660:3001:4002::2AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR193.49.159.2 2001:660:3001:4002::2
ns2.renater.fr193.49.159.9 2001:660:3001:4002::9AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR193.49.159.9 2001:660:3001:4002::9
ns4.cnrs.fr195.220.197.11 2001:660:500a:2210::11AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.renater.fr, ns2.renater.fr, ns4.cnrs.fr.
  • ✓ 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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS2200 (FR-RENATER - Renater, FR): 6 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.renater.fr 193.49.159.2NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns1.renater.fr 2001:660:3001:4002::2NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns2.renater.fr 193.49.159.9NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns2.renater.fr 2001:660:3001:4002::9NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns4.cnrs.fr 195.220.197.11NOERROR, 17 ms, authoritativenoyes / yesrefusedSECRET
ns4.cnrs.fr 2001:660:500a:2210::11NOERROR, 19 ms, authoritativenoyes / yesrefusedSECRET

Checks

  • ✓ All respond #14
    All 6 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: ns4.cnrs.fr: "SECRET".
    #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 2015093113 · primary ns1.renater.fr

Found

Primary (MNAME)
ns1.renater.fr
Contact (RNAME)
hostmaster.renater.fr
Serial
2015093113
Refresh / retry
21600 s / 3600 s
Expire
3600000 s
Negative TTL
172800 s

Serial per nameserver

NameserverSerial
ns1.renater.fr (193.49.159.2)2015093113
ns1.renater.fr (2001:660:3001:4002::2)2015093113
ns2.renater.fr (193.49.159.9)2015093113
ns2.renater.fr (2001:660:3001:4002::9)2015093113
ns4.cnrs.fr (195.220.197.11)2015093113
ns4.cnrs.fr (2001:660:500a:2210::11)2015093113

Checks

  • ✓ Serial 2015093113 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 2d is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 6h, retry 1h, expire 1000h, negative TTL 2d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.renater.fr is one of the listed nameservers.
  • ✓ Contact hostmaster@renater.fr #25
    The SOA RNAME hostmaster.renater.fr means hostmaster@renater.fr.
  • ✓ Timestamp serial #26
    The serial 2015093113 is a Unix timestamp (2033-11-08 20:05 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

4 records at the apex

Found

Read from
193.49.159.2:53
TypeValueTTL
SOAns1.renater.fr. hostmaster.renater.fr. 2015093113 21600 3600 3600000 17280086400
NSns2.renater.fr.86400
NSns1.renater.fr.86400
NSns4.cnrs.fr.86400

Checks

  • ✓ TTLs within range #32
    TTLs: 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