sorbonne.fr

Checked 22 October 2026, 05:17 UTC · via 8.8.8.8
!Passed with warnings
24 passed 4 warnings 0 failed 3 info

Registration

info

.fr country-code · GIP RENATER · expires 2026-11-30

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
16 October 1996
Last changed
31 December 2025
Expires
30 November 2026
Status
active
Registry nameservers
ns1.sorbonne.fr, ns2.sorbonne.fr, ns3.sorbonne.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 2026-11-30 #3
    The registration is valid until 2026-11-30 (39 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

ns1.sorbonne.fr, ns2.sorbonne.fr, ns3.sorbonne.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns1.sorbonne.fr, ns2.sorbonne.fr, ns3.sorbonne.fr
NS in the zone
ns1.sorbonne.fr, ns2.sorbonne.fr, ns3.sorbonne.fr, shiva.jussieu.fr
NameserverAddressesNetwork (AS)Glue
ns1.sorbonne.fr195.220.107.3AS2200 FR-RENATER - Renater, FR195.220.107.3
ns2.sorbonne.fr195.220.107.4AS2200 FR-RENATER - Renater, FR195.220.107.4
ns3.sorbonne.fr195.220.107.5AS2200 FR-RENATER - Renater, FR195.220.107.5
shiva.jussieu.fr (zone only)134.157.0.129AS1307 UNSPECIFIED - Renater, EU-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.sorbonne.fr, ns2.sorbonne.fr, ns3.sorbonne.fr.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: shiva.jussieu.fr. ns1.sorbonne.fr, ns2.sorbonne.fr, ns3.sorbonne.fr, shiva.jussieu.fr report NS ns1.sorbonne.fr ns2.sorbonne.fr ns3.sorbonne.fr shiva.jussieu.fr.
    #7
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.sorbonne.fr, ns2.sorbonne.fr, ns3.sorbonne.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: AS1307 (UNSPECIFIED - Renater, EU): 1 address; AS2200 (FR-RENATER - Renater, FR): 3 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

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.sorbonne.fr 195.220.107.3NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns2.sorbonne.fr 195.220.107.4NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns3.sorbonne.fr 195.220.107.5NOERROR, 17 ms, authoritativenoyes / yesrefused9.16.23-RH
shiva.jussieu.fr 134.157.0.129NOERROR, 13 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns3.sorbonne.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 2026091801 · primary ns1.sorbonne.fr

Found

Primary (MNAME)
ns1.sorbonne.fr
Contact (RNAME)
hostmaster.sorbonne.fr
Serial
2026091801
Refresh / retry
14400 s / 3600 s
Expire
1814400 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
ns1.sorbonne.fr (195.220.107.3)2026091801
ns2.sorbonne.fr (195.220.107.4)2026091801
ns3.sorbonne.fr (195.220.107.5)2026091801
shiva.jussieu.fr (134.157.0.129)2026091801

Checks

  • ✓ Serial 2026091801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 21d, negative TTL 3h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.sorbonne.fr is one of the listed nameservers.
  • ✓ Contact hostmaster@sorbonne.fr #25
    The SOA RNAME hostmaster.sorbonne.fr means hostmaster@sorbonne.fr.
  • ✓ Date-based serial #26
    The serial 2026091801 follows the YYYYMMDDnn convention (2026-09-18).

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

pass

20 records at the apex

Found

Read from
195.220.107.3:53
TypeValueTTL
SOAns1.sorbonne.fr. hostmaster.sorbonne.fr. 2026091801 14400 3600 1814400 1080086400
NSns3.sorbonne.fr.86400
NSns1.sorbonne.fr.86400
NSns2.sorbonne.fr.86400
NSshiva.jussieu.fr.86400
A195.220.107.10086400
MX5 ALT2.ASPMX.L.GOOGLE.COM.86400
MX1 ASPMX.L.GOOGLE.COM.86400
MX10 ALT3.ASPMX.L.GOOGLE.COM.86400
MX10 ALT4.ASPMX.L.GOOGLE.COM.86400
MX5 ALT1.ASPMX.L.GOOGLE.COM.86400
TXT"v=spf1 include:_spf.google.com ~all"86400
TXT"google-site-verification=QNBrvMUZmVqLcZh1p7MSfdZWLv8mWzGgJgT-vZKhmHQ"86400
TXT"HARICA-fcGhTQBxcgSq7jZrvoW"86400
CAA0 issue "harica.gr"86400
CAA0 issue "letsencrypt.org"86400
CAA0 issue "sectigo.com"86400
CAA0 issuewild "harica.gr"86400
CAA0 issuewild "sectigo.com"86400
CAA0 iodef "mailto:siris@sorbonne.fr"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 1d, 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: harica.gr, letsencrypt.org, sectigo.com.