Domain report: ac-dijon.fr

Registration

info

.fr country-code · GIP RENATER · expires 2027-09-28

Found

TLD: .fr (country-code)
ICANN policies apply: no
Registrar: GIP RENATER
Registered: 24 August 1995
Last changed: 28 September 2026
Expires: 28 September 2027
Status: active, auto renew period
Registry nameservers: ns.ac-dijon.fr, ns2.ac-dijon.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 2027-09-28 #3

The registration is valid until 2027-09-28 (341 days).
i

No transfer lock

The domain has no transfer lock (status: active, auto renew period). 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-dijon.fr, ns2.ac-dijon.fr

Found

Parent zone: fr
Delegation from: d.nic.fr (194.0.9.1)
NS at the parent: ns.ac-dijon.fr, ns2.ac-dijon.fr
NS in the zone: ns.ac-dijon.fr, ns2.ac-dijon.fr

Nameserver	Addresses	Network (AS)	Glue
ns.ac-dijon.fr	194.167.18.10	AS2200 FR-RENATER - Renater, FR	194.167.18.10
ns2.ac-dijon.fr	194.167.18.4	AS2200 FR-RENATER - Renater, FR	194.167.18.4

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns.ac-dijon.fr, ns2.ac-dijon.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: ns.ac-dijon.fr, ns2.ac-dijon.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 194.167.18.0/24. 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

info

2 of 2 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns.ac-dijon.fr 194.167.18.10	NOERROR, 19 ms, authoritative	no	yes / yes	refused	MyVersion
ns2.ac-dijon.fr 194.167.18.4	NOERROR, 19 ms, authoritative	no	yes / yes	refused	MyVersion

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.
i

Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns.ac-dijon.fr: "MyVersion"; ns2.ac-dijon.fr: "MyVersion".

#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

warn

serial 2026091268 · primary ns.ac-dijon.fr

Found

Primary (MNAME): ns.ac-dijon.fr
Contact (RNAME): isr.ac-dijon.fr
Serial: 2026091268
Refresh / retry: 28800 s / 7200 s
Expire: 604800 s
Negative TTL: 7200 s

Serial per nameserver

Nameserver	Serial
ns.ac-dijon.fr (194.167.18.10)	2026091268
ns2.ac-dijon.fr (194.167.18.4)	2026091267

Checks

!

Serials differ

The nameservers serve different versions of the zone: 2026091267 on ns2.ac-dijon.fr (194.167.18.4); 2026091268 on ns.ac-dijon.fr (194.167.18.10). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.

#22
✓ Timers within recommendations #23

SOA refresh 8h, retry 2h, expire 7d, negative TTL 2h.
✓ Primary is a public nameserver #24

The primary nameserver ns.ac-dijon.fr is one of the listed nameservers.
✓ Contact isr@ac-dijon.fr #25

The SOA RNAME isr.ac-dijon.fr means isr@ac-dijon.fr.
✓ Date-based serial #26

The serial 2026091268 follows the YYYYMMDDnn convention (2026-09-12).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 14 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
27250	RSASHA256 (8)	SHA256 AA89A8D3187D7790…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
14574	ZSK (256)	RSASHA256 (8)
27250	KSK (257)	RSASHA256 (8)

Checks

✓ Signed and validated #27

The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
✓ DS matches a key #28

The DS record at the parent matches a key in the zone: key tag 27250 (SHA256).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
✓ Signatures valid until 2026-11-14 #30

The earliest DNSKEY/SOA signature expires at 2026-11-14 13:35 UTC.
i

NSEC

The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.

#31

Records

pass

14 records at the apex

Found

Read from: 194.167.18.10:53

Type	Value	TTL
SOA	ns.ac-dijon.fr. isr.ac-dijon.fr. 2026091268 28800 7200 604800 7200	86400
NS	ns.ac-dijon.fr.	86400
NS	ns2.ac-dijon.fr.	86400
A	185.75.143.93	86400
MX	10 msg-a85.education.gouv.fr.	86400
MX	15 msg-b85.education.gouv.fr.	86400
TXT	"HARICA-TH2HUSUao5gsnnYAXqX"	86400
TXT	"v=spf1 ip4:195.221.236.198/32 ip4:195.221.236.199/32 ip4:195.221.236.200/32 ip4:194.167.18.17/32 ip4:195.221.236.195/32 ip4:195.221.236.186/32 ip4:195.221.236.185/32 ip4:193.51.147.21/28 ip4:194.254.206.80/29 ip4:193.54.151.80/29 mx -all"	86400
TXT	"google-site-verification=CMi7qoYSaX5Y5VFc2n6bht_7p-ZBDaD7vUIGQHPJfBI"	86400
TXT	"apple-domain-verification=zDiS9ARwqTfzzK43"	86400
CAA	0 issuewild "harica.gr"	86400
CAA	0 issue "education.gouv.fr"	86400
CAA	0 issue "harica.gr"	86400
CAA	0 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, education.gouv.fr, letsencrypt.org.