esdes.fr

Checked 22 October 2026, 02:47 UTC · via 8.8.8.8
✗Problems found
22 passed 3 warnings 1 failed 5 info

Registration

info

.fr country-code · GANDI · expires 2028-11-12

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GANDI
Registered
18 November 2004
Last changed
11 August 2026
Expires
12 November 2028
Status
client transfer prohibited
Registry nameservers
augustus.univ-catholyon.fr, guignol.univ-catholyon.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 2028-11-12 #3
    The registration is valid until 2028-11-12 (752 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

augustus.univ-catholyon.fr, guignol.univ-catholyon.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
augustus.univ-catholyon.fr, guignol.univ-catholyon.fr
NS in the zone
augustus.univ-catholyon.fr, guignol.univ-catholyon.fr
NameserverAddressesNetwork (AS)Glue
augustus.univ-catholyon.fr193.51.243.111AS2200 FR-RENATER - Renater, FR193.51.243.111
guignol.univ-catholyon.fr193.51.243.81AS2200 FR-RENATER - Renater, FR193.51.243.81

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: augustus.univ-catholyon.fr, guignol.univ-catholyon.fr.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ 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 one network
    all IPv4 addresses are in 193.51.243.0/24. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS2200 (FR-RENATER - Renater, FR): 2 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

1 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
augustus.univ-catholyon.fr 193.51.243.111NOERROR, 22 ms, authoritativenoyes / yesrefused-
guignol.univ-catholyon.fr 193.51.243.81no responsenono / no--

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: guignol.univ-catholyon.fr (193.51.243.81): read udp 46.225.38.91:46961->193.51.243.81:53: 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.
  • ✓ 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.
  • ✓ 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

info

serial 2026102001 · primary lugdunum.univ-catholyon.fr

Found

Primary (MNAME)
lugdunum.univ-catholyon.fr
Contact (RNAME)
hostmaster.univ-catholyon.fr
Serial
2026102001
Refresh / retry
14400 s / 3600 s
Expire
2419200 s
Negative TTL
3600 s

Checks

  • ✓ Serial 2026102001 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 28d, negative TTL 1h.
  • i
    Hidden master
    The primary nameserver lugdunum.univ-catholyon.fr is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact hostmaster@univ-catholyon.fr #25
    The SOA RNAME hostmaster.univ-catholyon.fr means hostmaster@univ-catholyon.fr.
  • ✓ Date-based serial #26
    The serial 2026102001 follows the YYYYMMDDnn convention (2026-10-20).

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

15 records at the apex

Found

Read from
193.51.243.111:53
TypeValueTTL
SOAlugdunum.univ-catholyon.fr. hostmaster.univ-catholyon.fr. 2026102001 14400 3600 2419200 36003600
NSguignol.univ-catholyon.fr.3600
NSaugustus.univ-catholyon.fr.3600
A193.51.243.863600
MX20 vade-mx-eu-fallback02.hornetsecurity.com.3600
MX10 vade-mx-fr02.hornetsecurity.com.3600
MX10 vade-mx-fr01.hornetsecurity.com.3600
MX20 vade-mx-eu-fallback01.hornetsecurity.com.3600
TXT"google-site-verification=Tcmq2oFseT9NZHfee5CLvkTCZcAU-ITPSjLnSE57sbw"3600
TXT"HARICA-iIuz8cxiRebUFAdEM7j"3600
TXT"brevo-code:09357c2630559d902817770f34dbf0b1"3600
TXT"v=spf1 ip4:193.51.243.70 ip4:193.51.243.71 include:spf.hornetsecurity.com include:5107289.spf02.hubspotemail.net ~all"3600
CAA0 issue "harica.gr"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "digicert.com"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1h.
  • ✓ 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, digicert.com.