univ-lyon3.fr

Checked 22 October 2026, 05:35 UTC · via 8.8.8.8
!Passed with warnings
23 passed 4 warnings 0 failed 4 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
antares.univ-lyon3.fr, arcturus.univ-lyon3.fr, diogene.univ-lyon2.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

antares.univ-lyon3.fr, arcturus.univ-lyon3.fr, diogene.univ-lyon2.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
antares.univ-lyon3.fr, arcturus.univ-lyon3.fr, diogene.univ-lyon2.fr
NS in the zone
antares.univ-lyon3.fr, arcturus.univ-lyon3.fr
NameserverAddressesNetwork (AS)Glue
antares.univ-lyon3.fr193.52.198.249AS2200 FR-RENATER - Renater, FR193.52.198.249
arcturus.univ-lyon3.fr193.52.198.248AS2200 FR-RENATER - Renater, FR193.52.198.248
diogene.univ-lyon2.fr (parent only)159.84.44.31AS1945 FR-LyRES - Renater, EU159.84.44.31

Checks

  • ✓ 3 nameservers #6
    Delegated to antares.univ-lyon3.fr, arcturus.univ-lyon3.fr, diogene.univ-lyon2.fr.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: diogene.univ-lyon2.fr. antares.univ-lyon3.fr, arcturus.univ-lyon3.fr, diogene.univ-lyon2.fr report NS antares.univ-lyon3.fr arcturus.univ-lyon3.fr.
    #7
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: antares.univ-lyon3.fr, arcturus.univ-lyon3.fr.
  • ✓ 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 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS1945 (FR-LyRES - Renater, EU): 1 address; 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

warn

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
antares.univ-lyon3.fr 193.52.198.249NOERROR, 19 ms, authoritativenoyes / yesrefusedYou're so curious !
arcturus.univ-lyon3.fr 193.52.198.248NOERROR, 24 ms, authoritativenoyes / yesrefusedYou're so curious !
diogene.univ-lyon2.fr 159.84.44.31NOERROR, 18 ms, authoritativenoyes / yesrefused9.16.23-RH

Checks

  • ✓ All respond #14
    All 3 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: diogene.univ-lyon2.fr: "9.16.23-RH". Hide or replace the version string.
    #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

pass

serial 2026100801 · primary antares.univ-lyon3.fr

Found

Primary (MNAME)
antares.univ-lyon3.fr
Contact (RNAME)
reseau-tech.univ-lyon3.fr
Serial
2026100801
Refresh / retry
21600 s / 3600 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
antares.univ-lyon3.fr (193.52.198.249)2026100801
arcturus.univ-lyon3.fr (193.52.198.248)2026100801
diogene.univ-lyon2.fr (159.84.44.31)2026100801

Checks

  • ✓ Serial 2026100801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 1h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver antares.univ-lyon3.fr is one of the listed nameservers.
  • ✓ Contact reseau-tech@univ-lyon3.fr #25
    The SOA RNAME reseau-tech.univ-lyon3.fr means reseau-tech@univ-lyon3.fr.
  • ✓ Date-based serial #26
    The serial 2026100801 follows the YYYYMMDDnn convention (2026-10-08).

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

13 records at the apex

Found

Read from
193.52.198.249:53
TypeValueTTL
SOAantares.univ-lyon3.fr. reseau-tech.univ-lyon3.fr. 2026100801 21600 3600 604800 864001800
NSantares.univ-lyon3.fr.1800
NSarcturus.univ-lyon3.fr.1800
MX40 mx1.relay.renater.fr.300
MX40 mx2.relay.renater.fr.300
TXT"abuseipdb-verification=dD22iI5k"1800
TXT"MS=761117B4D5EC9B59ABB6DF18C41A6D38CEF457FF"1800
TXT"HARICA-QnjHuJhvc6LgwILGNgY"1800
TXT"v=spf1 mx ip4:193.49.101.16 ip4:193.49.101.19 ip4:193.49.101.12 ip4:193.49.101.15 include:spf.relay.renater.fr -all"1800
TXT"adobe-idp-site-verification=f8949f53fedda4bc71e913199e1efb11aae526e51a67cf8d10b1fc0507d06d9c"1800
TXT"cisco-ci-domain-verification=6d4cc332fd30ffe5166fef817d2c7f05c03158847bd434fc4f7f098cc0e1633b"1800
TXT"apple-domain-verification=FjtZ5VJD5cEPTveO"1800
TXT"facebook-domain-verification=gtodterysfdqlhfr42oy92zjwu5ypy"1800

Checks

  • ✓ TTLs within range #32
    TTLs: MX 5m, NS 30m. The NS TTL at the parent is 1h and in the zone 30m; 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