persee.fr

Checked 22 October 2026, 04:46 UTC · via 8.8.8.8
!Passed with warnings
20 passed 5 warnings 0 failed 6 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-07-27

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
12 July 2004
Last changed
31 August 2026
Expires
27 July 2027
Status
active
Registry nameservers
diogene.univ-lyon2.fr, dns.ens-lyon.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 2027-07-27 #3
    The registration is valid until 2027-07-27 (278 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

diogene.univ-lyon2.fr, dns.ens-lyon.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
diogene.univ-lyon2.fr, dns.ens-lyon.fr
NS in the zone
diogene.univ-lyon2.fr, dns.ens-lyon.fr, dns2.ens-lyon.fr
NameserverAddressesNetwork (AS)Glue
diogene.univ-lyon2.fr159.84.44.31AS1945 FR-LyRES - Renater, EU159.84.44.31
dns.ens-lyon.fr140.77.167.2AS1945 FR-LyRES - Renater, EU140.77.167.2
dns2.ens-lyon.fr (zone only)140.77.51.20AS1945 FR-LyRES - Renater, EU-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: diogene.univ-lyon2.fr, dns.ens-lyon.fr.
    #6
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: dns2.ens-lyon.fr. diogene.univ-lyon2.fr, dns.ens-lyon.fr, dns2.ens-lyon.fr report NS diogene.univ-lyon2.fr dns.ens-lyon.fr dns2.ens-lyon.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.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 3 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1945 (FR-LyRES - Renater, EU): 3 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
  • !
    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
diogene.univ-lyon2.fr 159.84.44.31NOERROR, 19 ms, authoritativenoyes / yesrefused9.16.23-RH
dns.ens-lyon.fr 140.77.167.2NOERROR, 18 ms, authoritativenoyes / yesrefused9.18.49-1~deb12u2-Debian
dns2.ens-lyon.fr 140.77.51.20NOERROR, 17 ms, authoritativenoyes / yesrefused9.18.49-1~deb12u2-Debian

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"; dns.ens-lyon.fr: "9.18.49-1~deb12u2-Debian"; dns2.ens-lyon.fr: "9.18.49-1~deb12u2-Debian". 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 2026081801 · primary dns.ens-lyon.fr

Found

Primary (MNAME)
dns.ens-lyon.fr
Contact (RNAME)
root.persee.fr
Serial
2026081801
Refresh / retry
28800 s / 7200 s
Expire
2419200 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
diogene.univ-lyon2.fr (159.84.44.31)2026081801
dns.ens-lyon.fr (140.77.167.2)2026081801
dns2.ens-lyon.fr (140.77.51.20)2026081801

Checks

  • ✓ Serial 2026081801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 28d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns.ens-lyon.fr is one of the listed nameservers.
  • ✓ Contact root@persee.fr #25
    The SOA RNAME root.persee.fr means root@persee.fr.
  • ✓ Date-based serial #26
    The serial 2026081801 follows the YYYYMMDDnn convention (2026-08-18).

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

warn

11 records at the apex

Found

Read from
159.84.44.31:53
TypeValueTTL
SOAdns.ens-lyon.fr. root.persee.fr. 2026081801 28800 7200 2419200 864007200
NSdns.ens-lyon.fr.7200
NSdns2.ens-lyon.fr.7200
NSdiogene.univ-lyon2.fr.7200
A140.77.166.118180
MX10 mx2.relay.renater.fr.7200
MX10 mx1.relay.renater.fr.7200
TXT"v=spf1 include:spf.ens-lyon.fr include:spf.relay.renater.fr +mx -all"7200
TXT"MS=ms90047219"7200
TXT"Persee"7200
TXT"google-site-verification=o81q6epmodhdn4eEW9BUCqvgoDtCWhxxH2ypMEolky8"7200

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (3m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 2h; resolvers may use either.
    #32
  • ✓ 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