imt-atlantique.fr

Checked 22 October 2026, 03:27 UTC · via 8.8.8.8
!Passed with warnings
25 passed 3 warnings 0 failed 3 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-08-02

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
19 January 2016
Last changed
30 September 2026
Expires
2 August 2027
Status
active
Registry nameservers
dns.imt-atlantique.fr, mx-imta-fr-02.enst-bretagne.fr, mx-imta-fr.rennes.enst-bretagne.fr, spad.emn.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 2027-08-02 #3
    The registration is valid until 2027-08-02 (284 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

dns.imt-atlantique.fr, mx-imta-fr-02.enst-bretagne.fr, mx-imta-fr.rennes.enst-bretagne.fr, spad.emn.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns.imt-atlantique.fr, mx-imta-fr-02.enst-bretagne.fr, mx-imta-fr.rennes.enst-bretagne.fr, spad.emn.fr
NS in the zone
dns.imt-atlantique.fr, mx-imta-fr-02.enst-bretagne.fr, mx-imta-fr.rennes.enst-bretagne.fr, spad.emn.fr
NameserverAddressesNetwork (AS)Glue
dns.imt-atlantique.fr192.44.76.66AS209136 IMTAtlantique-NANTES - AS-IMTA-BREST, FR192.44.76.66
mx-imta-fr-02.enst-bretagne.fr192.108.117.12AS50897 AS-IMTA-BREST - AS-IMTA-BREST, FR-
mx-imta-fr.rennes.enst-bretagne.fr192.44.77.6AS2263 FR-RENATER-IMTA-RENNES - Renater, EU-
spad.emn.fr193.54.78.35AS2200 FR-RENATER - Renater, FR-

Checks

  • ✓ 4 nameservers #6
    Delegated to dns.imt-atlantique.fr, mx-imta-fr-02.enst-bretagne.fr, mx-imta-fr.rennes.enst-bretagne.fr, spad.emn.fr.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: dns.imt-atlantique.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 4 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 4 autonomous systems #11
    The nameservers are spread over: AS209136 (IMTAtlantique-NANTES - AS-IMTA-BREST, FR): 1 address; AS2200 (FR-RENATER - Renater, FR): 1 address; AS2263 (FR-RENATER-IMTA-RENNES - Renater, EU): 1 address; AS50897 (AS-IMTA-BREST - AS-IMTA-BREST, FR): 1 address.
  • 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
dns.imt-atlantique.fr 192.44.76.66NOERROR, 25 ms, authoritativenoyes / yesrefused9.9.5-9+deb8u11-Debian
mx-imta-fr-02.enst-bretagne.fr 192.108.117.12NOERROR, 24 ms, authoritativenoyes / yesrefused0.0.0-REL
mx-imta-fr.rennes.enst-bretagne.fr 192.44.77.6NOERROR, 19 ms, authoritativenoyes / yesrefused0.0.0-REL
spad.emn.fr 193.54.78.35NOERROR, 21 ms, authoritativenoyes / yesrefused9.9.5-9+deb8u11-Debian

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: dns.imt-atlantique.fr: "9.9.5-9+deb8u11-Debian"; mx-imta-fr-02.enst-bretagne.fr: "0.0.0-REL"; mx-imta-fr.rennes.enst-bretagne.fr: "0.0.0-REL"; spad.emn.fr: "9.9.5-9+deb8u11-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 2026101400 · primary dns.imt-atlantique.fr

Found

Primary (MNAME)
dns.imt-atlantique.fr
Contact (RNAME)
dnsmaster.imt-atlantique.fr
Serial
2026101400
Refresh / retry
21600 s / 3600 s
Expire
2419200 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns.imt-atlantique.fr (192.44.76.66)2026101400
mx-imta-fr-02.enst-bretagne.fr (192.108.117.12)2026101400
mx-imta-fr.rennes.enst-bretagne.fr (192.44.77.6)2026101400
spad.emn.fr (193.54.78.35)2026101400

Checks

  • ✓ Serial 2026101400 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 1h, expire 28d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns.imt-atlantique.fr is one of the listed nameservers.
  • ✓ Contact dnsmaster@imt-atlantique.fr #25
    The SOA RNAME dnsmaster.imt-atlantique.fr means dnsmaster@imt-atlantique.fr.
  • ✓ Date-based serial #26
    The serial 2026101400 follows the YYYYMMDDnn convention (2026-10-14).

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
192.44.76.66:53
TypeValueTTL
SOAdns.imt-atlantique.fr. dnsmaster.imt-atlantique.fr. 2026101400 21600 3600 2419200 360086400
NSdns.imt-atlantique.fr.86400
NSspad.emn.fr.86400
NSmx-imta-fr.rennes.enst-bretagne.fr.86400
NSmx-imta-fr-02.enst-bretagne.fr.86400
A192.108.117.23786400
MX30 mx-imta-fr-02.enst-bretagne.fr.86400
MX10 dns.imt-atlantique.fr.86400
TXT"1|www.imt-atlantique.fr"86400
TXT"docusign=1bf489c8-82f2-4ba1-9a76-e1cad2135595"86400
TXT"mistral-domain-verification=d568fed3b8accd23b66e534c6198629e724b3601"86400
TXT"v=spf1 mx ip4:192.108.117.8/30 ip4:129.20.128.134/24 ip4:93.17.230.6/24 ip4:129.20.134.23 ip4:192.44.76.192/29 ip4:192.108.115.12 ip4:192.108.115.3 ip4:192.44.77.17 include:enst.fr " " ip4:193.54.78.15 ip4:193.54.78.35 ip4:193.54.78.8 ip4:192.44.76.201 include:_spf.salesforce.com ~all"86400
TXT"ZOOM_verify_EYFBG-9CSAqEV8l0Ex_rtA"86400
TXT"google-site-verification=d4k-Oqq8ql-qLEbTz9LyHTm18xvOcb_1X1OArdICzrs"86400
TXT"cisco-ci-domain-verification=4c1dcf08037180fa3dab04b53f2164271998591d8cae03d1a6541c614b0c3846"86400
TXT"MS=79158DB1A9A24C98157167C87771B0731206E637"86400
CAA0 iodef "mailto:hostmaster@imt-atlantique.fr"86400
CAA0 issue "harica.gr"86400
CAA0 issuewild "harica.gr"86400
CAA0 issue "letsencrypt.org"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.