chu-grenoble.fr

Checked 22 October 2026, 02:16 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 6 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-01-06

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
23 June 1998
Last changed
28 February 2026
Expires
6 January 2027
Status
active
Registry nameservers
ns1.chu-grenoble.fr, ns2.chu-grenoble.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 2027-01-06 #3
    The registration is valid until 2027-01-06 (76 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.chu-grenoble.fr, ns2.chu-grenoble.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns1.chu-grenoble.fr, ns2.chu-grenoble.fr
NS in the zone
ns1.chu-grenoble.fr, ns2.chu-grenoble.fr
NameserverAddressesNetwork (AS)Glue
ns1.chu-grenoble.fr193.54.74.1AS2200 FR-RENATER - Renater, FR193.54.74.1
ns2.chu-grenoble.fr193.54.74.2AS2200 FR-RENATER - Renater, FR193.54.74.2

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.chu-grenoble.fr, ns2.chu-grenoble.fr.
    #6
  • ✓ 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: ns1.chu-grenoble.fr, ns2.chu-grenoble.fr.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • !
    Nameservers in one network
    all IPv4 addresses are in 193.54.74.0/24. 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

pass

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.chu-grenoble.fr 193.54.74.1NOERROR, 22 ms, authoritativenoyes / yesrefused-
ns2.chu-grenoble.fr 193.54.74.2NOERROR, 22 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 2 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.
  • ✓ 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

pass

serial 442 · primary ns1.chu-grenoble.fr

Found

Primary (MNAME)
ns1.chu-grenoble.fr
Contact (RNAME)
hostmaster.chu-grenoble.fr
Serial
442
Refresh / retry
3600 s / 900 s
Expire
691200 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.chu-grenoble.fr (193.54.74.1)442
ns2.chu-grenoble.fr (193.54.74.2)442

Checks

  • ✓ Serial 442 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 15m, expire 8d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.chu-grenoble.fr is one of the listed nameservers.
  • ✓ Contact hostmaster@chu-grenoble.fr #25
    The SOA RNAME hostmaster.chu-grenoble.fr means hostmaster@chu-grenoble.fr.
  • ✓ Counter serial #26
    The serial 442 is a plain counter.

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

9 records at the apex

Found

Read from
193.54.74.1:53
TypeValueTTL
SOAns1.chu-grenoble.fr. hostmaster.chu-grenoble.fr. 442 3600 900 691200 36003600
NSns1.chu-grenoble.fr.3600
NSns2.chu-grenoble.fr.3600
A37.187.155.1123600
MX10 mx1.chu-grenoble.fr.3600
MX10 mx2.chu-grenoble.fr.3600
TXT"v=spf1 ip4:193.54.74.13 ip4:193.54.74.14 ip4:152.77.8.1 ~all"3600
TXT"MS=D49DA282ACC1B5FB3F7C9E8FC7F37E1CE787B752"3600
TXT"pdnp59bh3j63dvxz6p8vc0j2ftr5zcg1"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.
  • 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