viry-chatillon.fr

Checked 22 October 2026, 05:55 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 6 info

Registration

info

.fr country-code · SFR · expires 2027-04-18

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
SFR
Registered
14 April 2002
Last changed
31 May 2026
Expires
18 April 2027
Status
active
Registry nameservers
ns1.sfrbusinessteam.fr, ns2.sfrbusinessteam.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 2027-04-18 #3
    The registration is valid until 2027-04-18 (177 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

ns1.sfrbusinessteam.fr, ns2.sfrbusinessteam.fr

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns1.sfrbusinessteam.fr, ns2.sfrbusinessteam.fr
NS in the zone
ns1.sfrbusinessteam.fr, ns2.sfrbusinessteam.fr
NameserverAddressesNetwork (AS)Glue
ns1.sfrbusinessteam.fr86.64.239.11AS15557 LDCOMNET - Societe Francaise Du Radiotelephone - SFR SA, FR86.64.239.11
ns2.sfrbusinessteam.fr84.96.147.1AS15557 LDCOMNET - Societe Francaise Du Radiotelephone - SFR SA, FR84.96.147.1

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.sfrbusinessteam.fr, ns2.sfrbusinessteam.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.
  • ✓ 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 (AS15557 (LDCOMNET - Societe Francaise Du Radiotelephone - SFR SA, 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

warn

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.sfrbusinessteam.fr 86.64.239.11NOERROR, 14 ms, authoritativenoyes / yesrefusedMicrosoft DNS 6.1.7601 (1DB15F75)
ns2.sfrbusinessteam.fr 84.96.147.1NOERROR, 13 ms, authoritativenoyes / yesrefusedMicrosoft DNS 6.1.7601 (1DB15F75)

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.sfrbusinessteam.fr: "Microsoft DNS 6.1.7601 (1DB15F75)"; ns2.sfrbusinessteam.fr: "Microsoft DNS 6.1.7601 (1DB15F75)". Hide or replace the version string.
    #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

pass

serial 2023020851 · primary ns1.sfrbusinessteam.fr

Found

Primary (MNAME)
ns1.sfrbusinessteam.fr
Contact (RNAME)
admin.sfrbusinessteam.fr
Serial
2023020851
Refresh / retry
43200 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.sfrbusinessteam.fr (86.64.239.11)2023020851
ns2.sfrbusinessteam.fr (84.96.147.1)2023020851

Checks

  • ✓ Serial 2023020851 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 1h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.sfrbusinessteam.fr is one of the listed nameservers.
  • ✓ Contact admin@sfrbusinessteam.fr #25
    The SOA RNAME admin.sfrbusinessteam.fr means admin@sfrbusinessteam.fr.
  • ✓ Date-based serial #26
    The serial 2023020851 follows the YYYYMMDDnn convention (2023-02-08).

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
86.64.239.11:53
TypeValueTTL
SOAns1.sfrbusinessteam.fr. admin.sfrbusinessteam.fr. 2023020851 43200 3600 604800 36003600
NSns2.sfrbusinessteam.fr.3600
NSns1.sfrbusinessteam.fr.3600
A20.13.154.195300
MX5 virychatillon-fr01b.mail.protection.outlook.com.3600
TXT"k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC9CnN19W/ZI5RrFYp5ymlidWRXhUnBATsq10xTOpyTy+8Ph2D1RBTKUTJrDOE629ruegVmcbffUFjQUytvWQu0r4ZPMd/PEfYeRYssrWldMlmabyoISqwYhH6hPfn9Tr/mpaL5caWAkqDHcD+9j/GbNMM+sxwssurAnXqOO6aPgQIDAQAB"3600
TXT"_7xq32mxasfoah9cwolc6hkptsxj8cyu"3600
TXT"MS=ms41724085"3600
TXT"_globalsign-domain-verification=RWjaSTLtZkftMm5JXFHPw4oHTDOsOjIk9ol9GcXSTl"3600
TXT"v=spf1 include:spf.protection.outlook.com include:spf.stratis.pro include:amazonses.com ~all"3600
TXT"_fon0nsqw9po7g3m9lzl8u6os2iljl2s"3600
TXT"_globalsign-domain-verification=AWh-lUrH6HqGIB8I8ORGalCul5T4tVSw52ZwXWnXcN"3600
TXT"Certeurope=fraiMna5gdYwFRerlN1W"3600
TXT"brevo-code:26d9c043bdcd88fd1373883f740fedc7"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.
  • 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