chu-brest.fr

Checked 22 October 2026, 02:16 UTC · via 8.8.8.8
!Passed with warnings
20 passed 4 warnings 0 failed 7 info

Registration

info

.fr country-code · Orange Business Services SA, direction EOLAS · expires 2028-02-02

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
Orange Business Services SA, direction EOLAS
Registered
17 January 2001
Last changed
9 September 2026
Expires
2 February 2028
Status
active
Registry nameservers
dns1.chu-brest.fr, dns2.chu-brest.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 2028-02-02 #3
    The registration is valid until 2028-02-02 (468 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

dns1.chu-brest.fr, dns2.chu-brest.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
dns1.chu-brest.fr, dns2.chu-brest.fr
NS in the zone
dns1.chu-brest.fr, dns2.chu-brest.fr
NameserverAddressesNetwork (AS)Glue
dns1.chu-brest.fr93.93.152.69AS212208 GCS_RTB-AS - GCS E-SANTE BRETAGNE, FR93.93.152.69
dns2.chu-brest.fr93.93.152.72AS212208 GCS_RTB-AS - GCS E-SANTE BRETAGNE, FR93.93.152.72

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns1.chu-brest.fr, dns2.chu-brest.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: dns1.chu-brest.fr, dns2.chu-brest.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 93.93.152.0/24. 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 (AS212208 (GCS_RTB-AS - GCS E-SANTE BRETAGNE, 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

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.chu-brest.fr 93.93.152.69NOERROR, 26 ms, authoritativenoyes / yesrefusednone
dns2.chu-brest.fr 93.93.152.72NOERROR, 26 ms, authoritativenoyes / yesrefusednone

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: dns1.chu-brest.fr: "none"; dns2.chu-brest.fr: "none".
    #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 2026082001 · primary dns1.chu-brest.fr

Found

Primary (MNAME)
dns1.chu-brest.fr
Contact (RNAME)
postmaster.chu-brest.fr
Serial
2026082001
Refresh / retry
3600 s / 3600 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
dns1.chu-brest.fr (93.93.152.69)2026082001
dns2.chu-brest.fr (93.93.152.72)2026082001

Checks

  • ✓ Serial 2026082001 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 7d, negative TTL 1d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.chu-brest.fr is one of the listed nameservers.
  • ✓ Contact postmaster@chu-brest.fr #25
    The SOA RNAME postmaster.chu-brest.fr means postmaster@chu-brest.fr.
  • ✓ Date-based serial #26
    The serial 2026082001 follows the YYYYMMDDnn convention (2026-08-20).

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

info

14 records at the apex

Found

Read from
93.93.152.69:53
TypeValueTTL
SOAdns1.chu-brest.fr. postmaster.chu-brest.fr. 2026082001 3600 3600 604800 86400300
NSdns1.chu-brest.fr.3600
NSdns2.chu-brest.fr.3600
A109.69.189.1463600
MX32767 ms19955376.msv1.invalid.chu-brest.fr.3600
MX10 vade-mx-fr02.hornetsecurity.com.3600
MX20 vade-mx-eu-fallback02.hornetsecurity.com.3600
MX10 vade-mx-fr01.hornetsecurity.com.3600
MX20 vade-mx-eu-fallback01.hornetsecurity.com.3600
TXT"mistral-domain-verification=93cf8891260f9f5b4886fe2d8a0c437a19a007b3"3600
TXT"MS=ms96822490"3600
TXT"google-site-verification=f4xmtweP4T2MT-pHScCOsCYMv054G-FpiHUXSzCXezM"3600
TXT"anthropic-domain-verification-vbx89s=Gxjy004mVEPHo39Ae3HA3pGMZ"3600
TXT"v=spf1 include:spf.cloud.vadesecure.com include:spf.hornetsecurity.com ip4:109.69.189.31 -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, 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.
  • i
    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