cea.fr

Checked 22 October 2026, 02:09 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 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
cirse.extra.cea.fr, oxalide.extra.cea.fr, sainfoin.extra.cea.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

cirse.extra.cea.fr, oxalide.extra.cea.fr, sainfoin.extra.cea.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
cirse.extra.cea.fr, oxalide.extra.cea.fr, sainfoin.extra.cea.fr
NS in the zone
cirse.extra.cea.fr, oxalide.extra.cea.fr, sainfoin.extra.cea.fr
NameserverAddressesNetwork (AS)Glue
cirse.extra.cea.fr132.166.172.102AS2200 FR-RENATER - Renater, FR132.166.172.102
oxalide.extra.cea.fr132.168.224.2AS777 UNSPECIFIED - IDDQD-AS, EU132.168.224.2
sainfoin.extra.cea.fr132.166.172.103AS2200 FR-RENATER - Renater, FR132.166.172.103

Checks

  • ✓ 3 nameservers #6
    Delegated to cirse.extra.cea.fr, oxalide.extra.cea.fr, sainfoin.extra.cea.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: cirse.extra.cea.fr, oxalide.extra.cea.fr, sainfoin.extra.cea.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 2 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS2200 (FR-RENATER - Renater, FR): 2 addresses; AS777 (UNSPECIFIED - IDDQD-AS, EU): 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

pass

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
cirse.extra.cea.fr 132.166.172.102NOERROR, 14 ms, authoritativenoyes / yesrefused-
oxalide.extra.cea.fr 132.168.224.2NOERROR, 21 ms, authoritativenoyes / yesrefused-
sainfoin.extra.cea.fr 132.166.172.103NOERROR, 18 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 3 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

info

serial 2026090911 · primary aster.intra.cea.fr

Found

Primary (MNAME)
aster.intra.cea.fr
Contact (RNAME)
hostmaster.cea.fr
Serial
2026090911
Refresh / retry
21600 s / 7200 s
Expire
2419200 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
cirse.extra.cea.fr (132.166.172.102)2026090911
oxalide.extra.cea.fr (132.168.224.2)2026090911
sainfoin.extra.cea.fr (132.166.172.103)2026090911

Checks

  • ✓ Serial 2026090911 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 2h, expire 28d, negative TTL 3h.
  • i
    Hidden master
    The primary nameserver aster.intra.cea.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@cea.fr #25
    The SOA RNAME hostmaster.cea.fr means hostmaster@cea.fr.
  • ✓ Date-based serial #26
    The serial 2026090911 follows the YYYYMMDDnn convention (2026-09-09).

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

25 records at the apex

Found

Read from
132.166.172.102:53
TypeValueTTL
SOAaster.intra.cea.fr. hostmaster.cea.fr. 2026090911 21600 7200 2419200 10800172800
NSoxalide.extra.cea.fr.172800
NSsainfoin.extra.cea.fr.172800
NScirse.extra.cea.fr.172800
A132.167.193.2300
MX5 cirse-smtp-in.extra.cea.fr.600
MX5 sainfoin-smtp-in.extra.cea.fr.600
MX5 oxalide-smtp-in.extra.cea.fr.600
TXT"google-site-verification=W5orfWJ_a_6qxo2bZClOfHL57NNuh3qt7UDoTaIuPnc"300
TXT"An9KU/nJ5HpJ3ESYoM8V8JEH7lQ="300
TXT"apple-domain-verification=ogeGrKGBahxdDFM0"300
TXT"HARICA-UouRYUUUW0XrtqGPzIJ"300
TXT"HARICA-qFUx65A8faANiV0QQKt"300
TXT"HARICA-VLzqavi4aoYNd3zpVuJ"300
TXT"cisco-ci-domain-verification=65d0feb0079b0e1c6b2ded313543eaa948def2ef8457a82809167a9e4c2a4bbb"300
TXT"google-site-verification=TcPdEkqx6n5-aZfCY7xgOrvI-JPXAzscOcm6B3b2dJU"300
TXT"v=spf1 ip4:132.167.192.0/24 ip4:132.168.224.0/24 mx:cea.fr include:_spf.afi-sa.net ~all"300
TXT"MS=6857D77DE0F1086536DB155C80D7CC03C1C8F0A3"300
CAA0 issuewild "harica.gr"600
CAA0 issue "harica.gr"600
CAA0 issue "letsencrypt.org"600
CAA0 issue "digicert.com"600
CAA0 issue "sectigo.com"600
CAA0 iodef "mailto:security@cea.fr"600
CAA0 issue "cea.fr"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 10m, NS 2d. The NS TTL at the parent is 1h and in the zone 2d; 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, digicert.com, sectigo.com, cea.fr.