u-bordeaux1.fr

Checked 22 October 2026, 05:32 UTC · via 8.8.8.8
✗Problems found
22 passed 3 warnings 1 failed 5 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-04-20

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
22 November 2001
Last changed
31 May 2026
Expires
20 April 2027
Status
active
Registry nameservers
dns1.u-bordeaux.fr, dns2.u-bordeaux.fr, dns3.u-bordeaux.fr, ns.u-bordeaux.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 2027-04-20 #3
    The registration is valid until 2027-04-20 (180 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

dns1.u-bordeaux.fr, dns2.u-bordeaux.fr, dns3.u-bordeaux.fr, ns.u-bordeaux.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns1.u-bordeaux.fr, dns2.u-bordeaux.fr, dns3.u-bordeaux.fr, ns.u-bordeaux.fr
NS in the zone
bxnms.u-bordeaux.fr, ns.u-bordeaux.fr
NameserverAddressesNetwork (AS)Glue
bxnms.u-bordeaux.fr (zone only)147.210.253.1 2001:660:6101:253::1AS2202 FR-RENATER-REAUMUR - Renater, EU AS2200 FR-RENATER - Renater, FR-
dns1.u-bordeaux.fr (parent only)147.210.215.211 2001:660:6101:1003::211AS2202 FR-RENATER-REAUMUR - Renater, EU AS2200 FR-RENATER - Renater, FR-
dns2.u-bordeaux.fr (parent only)147.210.215.212 2001:660:6101:1003::212AS2202 FR-RENATER-REAUMUR - Renater, EU AS2200 FR-RENATER - Renater, FR-
dns3.u-bordeaux.fr (parent only)147.210.215.213 2001:660:6101:1003::213AS2202 FR-RENATER-REAUMUR - Renater, EU AS2200 FR-RENATER - Renater, FR-
ns.u-bordeaux.fr147.210.215.200 2001:660:6101:1003::200AS2202 FR-RENATER-REAUMUR - Renater, EU AS2200 FR-RENATER - Renater, FR-

Checks

  • ✓ 4 nameservers #6
    Delegated to dns1.u-bordeaux.fr, dns2.u-bordeaux.fr, dns3.u-bordeaux.fr, ns.u-bordeaux.fr.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: dns1.u-bordeaux.fr, dns2.u-bordeaux.fr, dns3.u-bordeaux.fr; only in the zone: bxnms.u-bordeaux.fr. bxnms.u-bordeaux.fr, ns.u-bordeaux.fr report NS bxnms.u-bordeaux.fr ns.u-bordeaux.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.
  • i
    One address family in one network
    all IPv6 addresses are in 2001:660:6101::/48, while the other address family is spread over several networks.
    #10
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS2200 (FR-RENATER - Renater, FR): 5 addresses; AS2202 (FR-RENATER-REAUMUR - Renater, EU): 5 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

fail

4 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
bxnms.u-bordeaux.fr 147.210.253.1NOERROR, 26 ms, authoritativenoyes / yesrefused-
bxnms.u-bordeaux.fr 2001:660:6101:253::1NOERROR, 24 ms, authoritativenoyes / yesrefused-
dns1.u-bordeaux.fr 147.210.215.211no responsenono / no--
dns1.u-bordeaux.fr 2001:660:6101:1003::211no responsenono / no--
dns2.u-bordeaux.fr 147.210.215.212no responsenono / no--
dns2.u-bordeaux.fr 2001:660:6101:1003::212no responsenono / no--
dns3.u-bordeaux.fr 147.210.215.213no responsenono / no--
dns3.u-bordeaux.fr 2001:660:6101:1003::213no responsenono / no--
ns.u-bordeaux.fr 147.210.215.200NOERROR, 27 ms, authoritativenoyes / yesrefused-
ns.u-bordeaux.fr 2001:660:6101:1003::200NOERROR, 23 ms, authoritativenoyes / yesrefused-

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: dns1.u-bordeaux.fr (147.210.215.211): read udp 46.225.38.91:44875->147.210.215.211:53: i/o timeout; dns1.u-bordeaux.fr (2001:660:6101:1003::211): read udp [2a01:4f8:1c1c:eebf::1]:60452->[2001:660:6101:1003::211]:53: i/o timeout; dns2.u-bordeaux.fr (147.210.215.212): read udp 46.225.38.91:54233->147.210.215.212:53: i/o timeout; dns2.u-bordeaux.fr (2001:660:6101:1003::212): read udp [2a01:4f8:1c1c:eebf::1]:34520->[2001:660:6101:1003::212]:53: i/o timeout; dns3.u-bordeaux.fr (147.210.215.213): read udp 46.225.38.91:44725->147.210.215.213:53: i/o timeout; dns3.u-bordeaux.fr (2001:660:6101:1003::213): read udp [2a01:4f8:1c1c:eebf::1]:59516->[2001:660:6101:1003::213]:53: i/o timeout.
    #14
  • ✓ 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 2024072661 · primary bxnms.u-bordeaux.fr

Found

Primary (MNAME)
bxnms.u-bordeaux.fr
Contact (RNAME)
dnsmaster.u-bordeaux.fr
Serial
2024072661
Refresh / retry
129600 s / 900 s
Expire
1814400 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
bxnms.u-bordeaux.fr (147.210.253.1)2024072661
bxnms.u-bordeaux.fr (2001:660:6101:253::1)2024072661
ns.u-bordeaux.fr (147.210.215.200)2024072661
ns.u-bordeaux.fr (2001:660:6101:1003::200)2024072661

Checks

  • ✓ Serial 2024072661 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 36h is outside 20m–1d. Current values: refresh 36h, retry 15m, expire 21d, negative TTL 3h.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver bxnms.u-bordeaux.fr is one of the listed nameservers.
  • ✓ Contact dnsmaster@u-bordeaux.fr #25
    The SOA RNAME dnsmaster.u-bordeaux.fr means dnsmaster@u-bordeaux.fr.
  • ✓ Date-based serial #26
    The serial 2024072661 follows the YYYYMMDDnn convention (2024-07-26).

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

3 records at the apex

Found

Read from
147.210.253.1:53
TypeValueTTL
SOAbxnms.u-bordeaux.fr. dnsmaster.u-bordeaux.fr. 2024072661 129600 900 1814400 1080086400
NSns.u-bordeaux.fr.86400
NSbxnms.u-bordeaux.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