enssib.fr

Checked 22 October 2026, 02:45 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.fr country-code · GIP RENATER · expires 2026-12-31

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
31 December 1994
Last changed
31 January 2026
Expires
31 December 2026
Status
active
Registry nameservers
dns.univ-lyon1.fr, dns2.univ-lyon1.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 2026-12-31 #3
    The registration is valid until 2026-12-31 (70 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.univ-lyon1.fr, dns2.univ-lyon1.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns.univ-lyon1.fr, dns2.univ-lyon1.fr
NS in the zone
dns.univ-lyon1.fr, dns2.univ-lyon1.fr
NameserverAddressesNetwork (AS)Glue
dns.univ-lyon1.fr134.214.100.6 2001:660:5001:100::6AS2060 FR-RENATER - Renater, EU AS2200 FR-RENATER - Renater, FR134.214.100.6 2001:660:5001:100::6
dns2.univ-lyon1.fr134.214.100.245 2001:660:5001:100::245AS2060 FR-RENATER - Renater, EU AS2200 FR-RENATER - Renater, FR134.214.100.245 2001:660:5001:100::245

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns.univ-lyon1.fr, dns2.univ-lyon1.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 one network
    all IPv4 addresses are in 134.214.100.0/24; all IPv6 addresses are in 2001:660:5001::/48. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS2060 (FR-RENATER - Renater, EU): 2 addresses; AS2200 (FR-RENATER - Renater, 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
dns.univ-lyon1.fr 134.214.100.6NOERROR, 18 ms, authoritativenoyes / yesrefused-
dns.univ-lyon1.fr 2001:660:5001:100::6NOERROR, 20 ms, authoritativenoyes / yesrefused-
dns2.univ-lyon1.fr 134.214.100.245NOERROR, 23 ms, authoritativenoyes / yesrefused-
dns2.univ-lyon1.fr 2001:660:5001:100::245NOERROR, 23 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

pass

serial 2022070972 · primary dns.univ-lyon1.fr

Found

Primary (MNAME)
dns.univ-lyon1.fr
Contact (RNAME)
reseau.univ-lyon1.fr
Serial
2022070972
Refresh / retry
21600 s / 7200 s
Expire
6048000 s
Negative TTL
14400 s

Serial per nameserver

NameserverSerial
dns.univ-lyon1.fr (134.214.100.6)2022070972
dns.univ-lyon1.fr (2001:660:5001:100::6)2022070972
dns2.univ-lyon1.fr (134.214.100.245)2022070972
dns2.univ-lyon1.fr (2001:660:5001:100::245)2022070972

Checks

  • ✓ Serial 2022070972 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 2h, expire 70d, negative TTL 4h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns.univ-lyon1.fr is one of the listed nameservers.
  • ✓ Contact reseau@univ-lyon1.fr #25
    The SOA RNAME reseau.univ-lyon1.fr means reseau@univ-lyon1.fr.
  • ✓ Date-based serial #26
    The serial 2022070972 follows the YYYYMMDDnn convention (2022-07-09).

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

9 records at the apex

Found

Read from
134.214.100.6:53
TypeValueTTL
SOAdns.univ-lyon1.fr. reseau.univ-lyon1.fr. 2022070972 21600 7200 6048000 14400432000
NSdns.univ-lyon1.fr.432000
NSdns2.univ-lyon1.fr.432000
A134.214.200.103432000
MX5 enssib-fr.mail.protection.outlook.com.300
TXT"HARICA-Jdjuy9bh3anSanKNpFn"3600
TXT"v=spf1 ip4:134.214.188.128/25 ip4:134.214.200.103 ip4:134.214.55.206 ip4:134.214.55.211 ip6:2001:660:5001:a188::/64 include:spf.protection.outlook.com ~all"3600
TXT"anthropic-domain-verification-6encyd=3jCwZs2RvNaiJHtCkOKFxjX7W"3600
TXT"ms=3eae1bd1e60912bf235355ff099f033f82653831"3600

Checks

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