ac-creteil.fr

Checked 22 October 2026, 01:22 UTC · via 8.8.8.8
✗Problems found
19 passed 4 warnings 2 failed 6 info

Registration

info

.fr country-code · GIP RENATER · expires 2027-04-02

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
GIP RENATER
Registered
2 April 1998
Last changed
31 May 2026
Expires
2 April 2027
Status
active
Registry nameservers
ns.ac-amiens.fr, ns.ac-creteil.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 2027-04-02 #3
    The registration is valid until 2027-04-02 (162 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

ns.ac-amiens.fr, ns.ac-creteil.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns.ac-amiens.fr, ns.ac-creteil.fr
NS in the zone
ns.ac-amiens.fr, ns.ac-creteil.fr
NameserverAddressesNetwork (AS)Glue
ns.ac-amiens.fr195.221.153.10AS2200 FR-RENATER - Renater, FR194.199.46.3
ns.ac-creteil.fr195.98.248.124AS2200 FR-RENATER - Renater, FR195.98.248.124

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.ac-amiens.fr, ns.ac-creteil.fr.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns.ac-amiens.fr (glue 194.199.46.3, zone 195.221.153.10). Update the glue at your registrar.
    #8
  • ✓ 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.
  • 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
ns.ac-amiens.fr 195.221.153.10SERVFAIL, 26 ms, NOT authoritativenono / yesrefused-
ns.ac-creteil.fr 195.98.248.124NOERROR, 29 ms, authoritativenoyes / yesrefusedJosephTheBest

Checks

  • ✓ All respond #14
    All 2 nameserver addresses answered.
  • ✗
    Lame delegation
    These nameservers don't answer authoritatively for the zone, so resolvers ignore them: ns.ac-amiens.fr (195.221.153.10): SERVFAIL, authoritative=false.
    #15
  • ✓ 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: ns.ac-creteil.fr: "JosephTheBest".
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns.ac-amiens.fr (195.221.153.10): dial tcp 195.221.153.10:53: i/o timeout.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

warn

serial 2026102102 · primary ns.ac-creteil.fr

Found

Primary (MNAME)
ns.ac-creteil.fr
Contact (RNAME)
dns.ac-creteil.fr
Serial
2026102102
Refresh / retry
300 s / 3600 s
Expire
1209600 s
Negative TTL
14400 s

Checks

  • ✓ Serial 2026102102 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 5m is outside 20m–1d; retry 1h should be shorter than refresh 5m. Current values: refresh 5m, retry 1h, expire 14d, negative TTL 4h.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.ac-creteil.fr is one of the listed nameservers.
  • ✓ Contact dns@ac-creteil.fr #25
    The SOA RNAME dns.ac-creteil.fr means dns@ac-creteil.fr.
  • ✓ Date-based serial #26
    The serial 2026102102 follows the YYYYMMDDnn convention (2026-10-21).

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
195.98.248.124:53
TypeValueTTL
SOAns.ac-creteil.fr. dns.ac-creteil.fr. 2026102102 300 3600 1209600 1440014400
NSns.ac-amiens.fr.3600
NSns.ac-creteil.fr.3600
A185.75.143.93300
MX15 msg-b85.education.gouv.fr.3600
MX10 msg-a85.education.gouv.fr.3600
TXT"google-site-verification=KlxtVXYbeqsTpzPFpmykceIYGw3GMCZdzMrs_fuMsKM"3600
TXT"v=spf1 ip4:195.98.247.0/24 ip4:193.51.147.21/28 ip4:194.254.206.80/29 ip4:193.54.151.80/29 ip4:195.98.246.96/27 ip4:195.98.248.86 ip4:195.98.248.87 ip4:195.98.248.98 ip4:195.98.248.73 ip4:195.221.96.18 ip4:195.98.248.125 include:spf1.ymag.cloud include:_s" "pfacad.phm.education.gouv.fr ~all"3600
TXT"Site officiel de l"3600
TXT"brevo-code:667774de0f342e5c2c6bf0572ce15f85"3600
TXT"HARICA-aw9QoM9R6XQ9fE6OZic"3600
TXT"cisco-ci-domain-verification=1ee2ccaac54bf0f5f78a0e2932bc30425f8f3d6a15f29879feb397b58f1a9d13"3600
TXT"google-site-verification=xTjjfEUgCWyrMmWdOTZY2B1FE9U1I8LXjkeq-AemQYc"3600
CAA0 issuewild "harica.gr"3600
CAA0 issue "harica.gr"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, 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.