Domain report: chu-tours.fr

Registration

info

.fr country-code · ADISTA · expires 2027-10-06

Found

TLD: .fr (country-code)
ICANN policies apply: no
Registrar: ADISTA
Registered: 21 September 1999
Last changed: 6 October 2026
Expires: 6 October 2027
Status: active, auto renew period
Registry nameservers: ns3.rmi.fr, ns4.rmi.fr
RDAP server: https://rdap.nic.fr/

Checks

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.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 2027-10-06 #3

The registration is valid until 2027-10-06 (349 days).
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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

info

ns3.rmi.fr, ns4.rmi.fr

Found

Parent zone: fr
Delegation from: d.nic.fr (194.0.9.1)
NS at the parent: ns3.rmi.fr, ns4.rmi.fr
NS in the zone: ns3.rmi.fr, ns4.rmi.fr

Nameserver	Addresses	Network (AS)	Glue
ns3.rmi.fr	212.51.161.18 2a01:728:0:1::3	AS16347 INHERENT - ADISTA SAS, FR AS16347 INHERENT - ADISTA SAS, FR	212.51.161.18 2a01:728:0:1::3
ns4.rmi.fr	212.51.185.2 2a01:728:0:2::4	AS16347 INHERENT - ADISTA SAS, FR AS16347 INHERENT - ADISTA SAS, FR	212.51.185.2 2a01:728:0:2::4

Checks

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2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns3.rmi.fr, ns4.rmi.fr.

#6
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ No glue needed #8

All nameservers are outside the zone, so no glue records are needed.
✓ All names resolve #9

Every nameserver name has an address and is not an alias.
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One address family in one network

all IPv6 addresses are in 2a01:728::/48, while the other address family is spread over several networks.

#10
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All nameservers in one AS

All nameserver addresses are announced by one network operator (AS16347 (INHERENT - ADISTA SAS, FR): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
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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
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns3.rmi.fr 212.51.161.18	NOERROR, 17 ms, authoritative	no	yes / yes	refused	-
ns3.rmi.fr 2a01:728:0:1::3	NOERROR, 17 ms, authoritative	no	yes / yes	refused	-
ns4.rmi.fr 212.51.185.2	NOERROR, 20 ms, authoritative	no	yes / yes	refused	-
ns4.rmi.fr 2a01:728:0:2::4	NOERROR, 20 ms, authoritative	no	yes / yes	refused	-

Checks

✓ All respond #14

All 4 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 2026101501 · primary ns3.rmi.fr

Found

Primary (MNAME): ns3.rmi.fr
Contact (RNAME): ndd.adista.fr
Serial: 2026101501
Refresh / retry: 21600 s / 3600 s
Expire: 604800 s
Negative TTL: 86400 s

Serial per nameserver

Nameserver	Serial
ns3.rmi.fr (212.51.161.18)	2026101501
ns3.rmi.fr (2a01:728:0:1::3)	2026101501
ns4.rmi.fr (212.51.185.2)	2026101501
ns4.rmi.fr (2a01:728:0:2::4)	2026101501

Checks

✓ Serial 2026101501 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 6h, retry 1h, expire 7d, negative TTL 1d.
✓ Primary is a public nameserver #24

The primary nameserver ns3.rmi.fr is one of the listed nameservers.
✓ Contact ndd@adista.fr #25

The SOA RNAME ndd.adista.fr means ndd@adista.fr.
✓ Date-based serial #26

The serial 2026101501 follows the YYYYMMDDnn convention (2026-10-15).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC3
NSEC3: 0 iterations, 0-byte salt
Signatures valid until: 29 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
24586	ECDSAP256SHA256 (13)	SHA384 5829ADA07752623D…	yes
24586	ECDSAP256SHA256 (13)	SHA256 E6F166361032D56B…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
24586	KSK (257)	ECDSAP256SHA256 (13)

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 24586 (SHA384), key tag 24586 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
!

Signatures expire soon

The earliest signature expires at 2026-10-29 00:00 UTC (in 166h0m0s). Check that automatic re-signing works.

#30
✓ NSEC3 as recommended #31

The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

info

14 records at the apex

Found

Read from: 212.51.161.18:53

Type	Value	TTL
SOA	ns3.rmi.fr. ndd.adista.fr. 2026101501 21600 3600 604800 86400	86400
NS	ns4.rmi.fr.	86400
NS	ns3.rmi.fr.	86400
A	51.255.74.91	86400
MX	1 chru37.in.tmes.trendmicro.eu.	300
TXT	"MS=ms77498537"	86400
TXT	"SSR8WW2DLDAOBPRPW864O5QO3IG3C9OSWT5V90BO"	86400
TXT	"apple-domain-verification=miqiuahMOlUwICVr"	86400
TXT	"google-site-verification=Wl35_c3VbNfBLRaAK1LNIkZKf8wVZaqvadgDDLRfht8"	86400
TXT	"mandrill_verify.oxnjcI1TlJRqOWCq3jS5lA"	86400
TXT	"tmes=77e63cf581899fe6312fc9614e19c089"	86400
TXT	"v=spf1 include:spf.tmes.trendmicro.com include:spf.protection.outlook.com ip4:91.235.141.0/24 -all"	86400
TXT	"4g7cNi0CSKvxrkeeSLv06jtNxEw="	86400
TXT	"J7jecozAsDMfgy0criQQfNwbY49KGoLbbl0rgkeFZdj8TcJHN5pg/Dhz7BqD4choJHsJRDBKKXkELJw9sd06ag=="	86400

Checks

✓ TTLs within range #32

TTLs: A 1d, MX 5m, 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.
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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