groupe-insa.fr

Checked 22 October 2026, 03:17 UTC · via 8.8.8.8
✗Problems found
21 passed 2 warnings 2 failed 6 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-10-16

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
16 October 2013
Last changed
16 October 2026
Expires
16 October 2027
Status
active, auto renew period
Registry nameservers
ccpntc3.in2p3.fr, ccpnvx.in2p3.fr, 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 2027-10-16 #3
    The registration is valid until 2027-10-16 (359 days).
  • i
    No transfer lock
    The domain has no transfer lock (status: active, auto renew period). 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

ccpntc3.in2p3.fr, ccpnvx.in2p3.fr, 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
ccpntc3.in2p3.fr, ccpnvx.in2p3.fr, dns.univ-lyon1.fr, dns2.univ-lyon1.fr
NS in the zone
dns.univ-lyon1.fr, dns2.univ-lyon1.fr
NameserverAddressesNetwork (AS)Glue
ccpntc3.in2p3.fr (parent only)134.158.69.191AS789 IN2P3 - Renater, EU134.158.69.191
ccpnvx.in2p3.fr (parent only)134.158.69.104AS789 IN2P3 - Renater, EU134.158.69.104
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

  • ✓ 4 nameservers #6
    Delegated to ccpntc3.in2p3.fr, ccpnvx.in2p3.fr, dns.univ-lyon1.fr, dns2.univ-lyon1.fr.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: ccpntc3.in2p3.fr, ccpnvx.in2p3.fr. dns.univ-lyon1.fr, dns2.univ-lyon1.fr report NS dns.univ-lyon1.fr dns2.univ-lyon1.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 2001:660:5001::/48, while the other address family is spread over several networks.
    #10
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS2060 (FR-RENATER - Renater, EU): 2 addresses; AS2200 (FR-RENATER - Renater, FR): 2 addresses; AS789 (IN2P3 - Renater, EU): 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ccpntc3.in2p3.fr, ccpnvx.in2p3.fr.
    #13

Nameservers

fail

4 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ccpntc3.in2p3.fr 134.158.69.191REFUSED, 19 ms, NOT authoritativenono / yesrefused-
ccpnvx.in2p3.fr 134.158.69.104REFUSED, 19 ms, NOT authoritativenono / yesrefused-
dns.univ-lyon1.fr 134.214.100.6NOERROR, 19 ms, authoritativenoyes / yesrefused-
dns.univ-lyon1.fr 2001:660:5001:100::6NOERROR, 22 ms, authoritativenoyes / yesrefused-
dns2.univ-lyon1.fr 134.214.100.245NOERROR, 16 ms, authoritativenoyes / yesrefused-
dns2.univ-lyon1.fr 2001:660:5001:100::245NOERROR, 19 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 6 nameserver addresses answered.
  • ✗
    Lame delegation
    These nameservers don't answer authoritatively for the zone, so resolvers ignore them: ccpntc3.in2p3.fr (134.158.69.191): REFUSED, authoritative=false; ccpnvx.in2p3.fr (134.158.69.104): REFUSED, authoritative=false.
    #15
  • ✓ 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.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ccpntc3.in2p3.fr (134.158.69.191): ; ccpnvx.in2p3.fr (134.158.69.104): .
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2021022627 · primary dns.univ-lyon1.fr

Found

Primary (MNAME)
dns.univ-lyon1.fr
Contact (RNAME)
reseau.univ-lyon1.fr
Serial
2021022627
Refresh / retry
21600 s / 7200 s
Expire
3628800 s
Negative TTL
14400 s

Serial per nameserver

NameserverSerial
dns.univ-lyon1.fr (134.214.100.6)2021022627
dns.univ-lyon1.fr (2001:660:5001:100::6)2021022627
dns2.univ-lyon1.fr (134.214.100.245)2021022627
dns2.univ-lyon1.fr (2001:660:5001:100::245)2021022627

Checks

  • ✓ Serial 2021022627 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 2h, expire 42d, 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 2021022627 follows the YYYYMMDDnn convention (2021-02-26).

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

12 records at the apex

Found

Read from
134.214.100.6:53
TypeValueTTL
SOAdns.univ-lyon1.fr. reseau.univ-lyon1.fr. 2021022627 21600 7200 3628800 14400432000
NSdns.univ-lyon1.fr.432000
NSdns2.univ-lyon1.fr.432000
A134.214.182.196300
MX45 mx1.relay.renater.fr.300
MX45 mx2.relay.renater.fr.300
MX20 insa-smtp.insa-lyon.fr.300
TXT"HARICA-a6sHEktlQ3XWEhN46q4"300
TXT"HARICA-8yXfhphTtM3bX4jXjS6"300
TXT"HARICA-OnUHCQeiYBVGFzWTWol"300
TXT"v=spf1 mx ip4:134.214.182.0/24 ip4:134.214.182.44 ip4:193.49.159.28 include:spf.partage.renater.fr include:spf.relay.renater.fr ~all"300
TXT"HARICA-vgMdoAZwAgZ9kp9yFJ8"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, 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