univ-paris13.fr

Checked 22 October 2026, 05:36 UTC · via 8.8.8.8
✗Problems found
20 passed 4 warnings 1 failed 6 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
dns1.univ-paris13.fr, dns2.univ-paris13.fr, up13p7.univ-paris13.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

dns1.univ-paris13.fr, dns2.univ-paris13.fr, up13p7.univ-paris13.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns1.univ-paris13.fr, dns2.univ-paris13.fr, up13p7.univ-paris13.fr
NS in the zone
dns1.univ-paris13.fr, dns2.univ-paris13.fr
NameserverAddressesNetwork (AS)Glue
dns1.univ-paris13.fr193.54.26.1AS2200 FR-RENATER - Renater, FR193.54.26.1
dns2.univ-paris13.fr194.254.164.6AS2200 FR-RENATER - Renater, FR194.254.164.6
up13p7.univ-paris13.fr (parent only)194.254.61.61AS2200 FR-RENATER - Renater, FR194.254.61.61 2001:660:3301:8003:212:3fff:fe60:599f

Checks

  • ✓ 3 nameservers #6
    Delegated to dns1.univ-paris13.fr, dns2.univ-paris13.fr, up13p7.univ-paris13.fr.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: up13p7.univ-paris13.fr. dns1.univ-paris13.fr, dns2.univ-paris13.fr report NS dns1.univ-paris13.fr dns2.univ-paris13.fr.
    #7
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: up13p7.univ-paris13.fr (glue 194.254.61.61, 2001:660:3301:8003:212:3fff:fe60:599f, zone 194.254.61.61). Update the glue at your registrar.
    #8
  • ✓ 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 (AS2200 (FR-RENATER - Renater, FR): 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

fail

2 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.univ-paris13.fr 193.54.26.1NOERROR, 15 ms, authoritativenoyes / yesrefusednot for your benefice
dns2.univ-paris13.fr 194.254.164.6NOERROR, 15 ms, authoritativenoyes / yesrefusednot for your benefice
up13p7.univ-paris13.fr 194.254.61.61no responsenono / no--

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: up13p7.univ-paris13.fr (194.254.61.61): read udp 46.225.38.91:33791->194.254.61.61:53: i/o timeout.
    #14
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: dns1.univ-paris13.fr: "not for your benefice"; dns2.univ-paris13.fr: "not for your benefice".
    #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 2026102101 · primary dns1.univ-paris13.fr

Found

Primary (MNAME)
dns1.univ-paris13.fr
Contact (RNAME)
hostmaster.univ-paris13.fr
Serial
2026102101
Refresh / retry
21600 s / 3600 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
dns1.univ-paris13.fr (193.54.26.1)2026102101
dns2.univ-paris13.fr (194.254.164.6)2026102101

Checks

  • ✓ Serial 2026102101 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 dns1.univ-paris13.fr is one of the listed nameservers.
  • ✓ Contact hostmaster@univ-paris13.fr #25
    The SOA RNAME hostmaster.univ-paris13.fr means hostmaster@univ-paris13.fr.
  • ✓ Date-based serial #26
    The serial 2026102101 follows the YYYYMMDDnn convention (2026-10-21).

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

21 records at the apex

Found

Read from
193.54.26.1:53
TypeValueTTL
SOAdns1.univ-paris13.fr. hostmaster.univ-paris13.fr. 2026102101 21600 3600 604800 86400300
NSdns1.univ-paris13.fr.300
NSdns2.univ-paris13.fr.300
A81.194.43.211300
A81.194.43.212300
MX50 mailgw1.univ-spn.fr.300
MX50 mailgw2.univ-spn.fr.300
TXT"spf2.0/pra ~all"300
TXT"HARICA-1jiX3a0R7Olddfev7nS"300
TXT"hibp-verify=dweb_1op8ncr5qsilu4vfw9n6w2q0"300
TXT"apple-domain-verification=phzYtL3W87BE0UWQ"300
TXT"brevo-code:22bc12db48f83c7d903cffc110c49200"300
TXT"brevo-code:233e5f18703428de4be7c3192de916a2"300
TXT"brevo-code:2e35102540a4773609acba9801f8a4e9"300
TXT"brevo-code:ae1d9b682b9c8d3f27714a8f1374f95a"300
TXT"brevo-code:eb70abffd4e8fcf01cbab050a7360c32"300
TXT"brevo-code:f22d3d6a00e795af821b898a57a85e17"300
TXT"v=spf1 a:mailgw1.univ-spn.fr a:mailgw2.univ-spn.fr " "ip4:81.194.43.48/29 " "a:listes.univ-paris13.fr " "a:sercalwims.ig-edu.univ-paris13.fr ip4:194.254.167.39 ip4:192.33.182.0/24 ip4:81.194.43.175 " "include:spf.jobaffinity.fr include:spf-eu.exlibrisgroup.com " "include:spf.mailjet.com -all"300
TXT"google-site-verification=C2JTemyviAEQ0Yy7ka-IIlqDbHtMtCMqI9epCl3vGpQ"300
TXT"google-site-verification=YTOBeHf45C8hcTYrc_XVIiURcZlB7fQPYg2Q1SlpKo8"300
TXT"google-site-verification=rqKFUlLbPdpq0IODfOZl5W3eRGGiDGuUTH94RWr_l8E"300

Checks

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