ircam.fr

Checked 22 October 2026, 03:32 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 warnings 0 failed 7 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
17 April 2026
Expires
31 December 2026
Status
active
Registry nameservers
maelzel.ircam.fr, nadia.ircam.fr, vaslav.ircam.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

maelzel.ircam.fr, nadia.ircam.fr, vaslav.ircam.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
maelzel.ircam.fr, nadia.ircam.fr, vaslav.ircam.fr
NS in the zone
maelzel.ircam.fr, nadia.ircam.fr, ns1-metz.centralesupelec.fr, ns1-rennes.centralesupelec.fr, ns1-saclay.centralesupelec.fr, piston.ecp.fr, vaslav.ircam.fr
NameserverAddressesNetwork (AS)Glue
maelzel.ircam.fr129.102.1.10 2001:660:3004:4000::10:53AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR129.102.1.10 2001:660:3004:4000::10:53
nadia.ircam.fr129.102.1.8 2001:660:3004:4000::8:53AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR129.102.1.8 2001:660:3004:4000::8:53
ns1-metz.centralesupelec.fr (zone only)193.48.224.3AS2200 FR-RENATER - Renater, FR-
ns1-rennes.centralesupelec.fr (zone only)193.54.192.54AS2200 FR-RENATER - Renater, FR-
ns1-saclay.centralesupelec.fr (zone only)138.195.193.12AS2200 FR-RENATER - Renater, FR-
piston.ecp.fr (zone only)138.195.33.3AS2200 FR-RENATER - Renater, FR-
vaslav.ircam.fr129.102.1.6 2001:660:3004:4000::6:53AS2200 FR-RENATER - Renater, FR AS2200 FR-RENATER - Renater, FR129.102.1.6 2001:660:3004:4000::6:53

Checks

  • ✓ 3 nameservers #6
    Delegated to maelzel.ircam.fr, nadia.ircam.fr, vaslav.ircam.fr.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: ns1-metz.centralesupelec.fr, ns1-rennes.centralesupelec.fr, ns1-saclay.centralesupelec.fr, piston.ecp.fr. maelzel.ircam.fr, nadia.ircam.fr, ns1-metz.centralesupelec.fr, ns1-rennes.centralesupelec.fr, ns1-saclay.centralesupelec.fr, piston.ecp.fr, vaslav.ircam.fr report NS maelzel.ircam.fr nadia.ircam.fr ns1-metz.centralesupelec.fr ns1-rennes.centralesupelec.fr ns1-saclay.centralesupelec.fr piston.ecp.fr vaslav.ircam.fr.
    #7
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: maelzel.ircam.fr, nadia.ircam.fr, vaslav.ircam.fr.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2001:660:3004::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS2200 (FR-RENATER - Renater, FR): 10 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns1-metz.centralesupelec.fr, ns1-rennes.centralesupelec.fr, ns1-saclay.centralesupelec.fr, piston.ecp.fr.
    #13

Nameservers

info

10 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
maelzel.ircam.fr 129.102.1.10NOERROR, 17 ms, authoritativenoyes / yesrefused-
maelzel.ircam.fr 2001:660:3004:4000::10:53NOERROR, 18 ms, authoritativenoyes / yesrefused-
nadia.ircam.fr 129.102.1.8NOERROR, 18 ms, authoritativenoyes / yesrefused-
nadia.ircam.fr 2001:660:3004:4000::8:53NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns1-metz.centralesupelec.fr 193.48.224.3NOERROR, 22 ms, authoritativenoyes / yesrefusedNot available
ns1-rennes.centralesupelec.fr 193.54.192.54NOERROR, 21 ms, authoritativenoyes / yesrefusedNot available
ns1-saclay.centralesupelec.fr 138.195.193.12NOERROR, 16 ms, authoritativenoyes / yesrefusedNot available
piston.ecp.fr 138.195.33.3NOERROR, 18 ms, authoritativenoyes / yesrefused-
vaslav.ircam.fr 129.102.1.6NOERROR, 14 ms, authoritativenoyes / yesrefused-
vaslav.ircam.fr 2001:660:3004:4000::6:53NOERROR, 14 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 10 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1-metz.centralesupelec.fr: "Not available"; ns1-rennes.centralesupelec.fr: "Not available"; ns1-saclay.centralesupelec.fr: "Not available".
    #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 2026102002 · primary maelzel.ircam.fr

Found

Primary (MNAME)
maelzel.ircam.fr
Contact (RNAME)
dnsmaster.ircam.fr
Serial
2026102002
Refresh / retry
21600 s / 3600 s
Expire
3600000 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
maelzel.ircam.fr (129.102.1.10)2026102002
maelzel.ircam.fr (2001:660:3004:4000::10:53)2026102002
nadia.ircam.fr (129.102.1.8)2026102002
nadia.ircam.fr (2001:660:3004:4000::8:53)2026102002
ns1-metz.centralesupelec.fr (193.48.224.3)2026102002
ns1-rennes.centralesupelec.fr (193.54.192.54)2026102002
ns1-saclay.centralesupelec.fr (138.195.193.12)2026102002
piston.ecp.fr (138.195.33.3)2026102002
vaslav.ircam.fr (129.102.1.6)2026102002
vaslav.ircam.fr (2001:660:3004:4000::6:53)2026102002

Checks

  • ✓ Serial 2026102002 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 1h, expire 1000h, negative TTL 3h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver maelzel.ircam.fr is one of the listed nameservers.
  • ✓ Contact dnsmaster@ircam.fr #25
    The SOA RNAME dnsmaster.ircam.fr means dnsmaster@ircam.fr.
  • ✓ Date-based serial #26
    The serial 2026102002 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

19 records at the apex

Found

Read from
129.102.1.10:53
TypeValueTTL
SOAmaelzel.ircam.fr. dnsmaster.ircam.fr. 2026102002 21600 3600 3600000 108001800
NSmaelzel.ircam.fr.1800
NSns1-metz.centralesupelec.fr.1800
NSnadia.ircam.fr.1800
NSpiston.ecp.fr.1800
NSvaslav.ircam.fr.1800
NSns1-saclay.centralesupelec.fr.1800
NSns1-rennes.centralesupelec.fr.1800
A129.102.1.401800
MX45 mailhost1.ircam.fr.1800
MX40 mailhost4.ircam.fr.1800
TXT"google-site-verification=l2sN4ayoB8vUwgTkO_-RjJt4f0ujKCYG7a5c2Tub5ME"1800
TXT"apple-domain-verification=lL9g4ZemS4Q1rzKh"1800
TXT"mistral-domain-verification=f637a5f7317868cf1e033699b3bb10a7dde63019"1800
TXT"v=spf1 include:_spf.ircam.fr +ip4:129.102.3.71 +ip4:129.102.3.72 +ip6:2001:660:3004:4001:0:0:71:25 +ip6:2001:660:3004:4001::72:25 +ip4:129.102.0.0/16 +ip6:2001:660:3004::/48 -all"1800
TXT"MS=7900DFE8346A615FCD215731FCB94BD05EC82527"1800
TXT"google-site-verification=vpOeMrwmpLVnXitl7tELn7MYA1SORnqjb273f5wAa38"1800
CAA0 issue "letsencrypt.org"1800
CAA128 iodef "mailto:abuse+tls@ircam.fr"1800

Checks

  • ✓ TTLs within range #32
    TTLs: A 30m, MX 30m, NS 30m. The NS TTL at the parent is 1h and in the zone 30m; 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: letsencrypt.org.