siblu.fr

Checked 22 October 2026, 05:13 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.fr country-code · BDL SYSTEMES dba Systonic · expires 2027-02-19

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
BDL SYSTEMES dba Systonic
Registered
18 May 2004
Last changed
31 March 2026
Expires
19 February 2027
Status
active
Registry nameservers
ns-1526.awsdns-62.org, ns-1904.awsdns-46.co.uk, ns-280.awsdns-35.com, ns-651.awsdns-17.net
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 2027-02-19 #3
    The registration is valid until 2027-02-19 (120 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

info

ns-1526.awsdns-62.org, ns-1904.awsdns-46.co.uk, ns-280.awsdns-35.com, ns-651.awsdns-17.net

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns-1526.awsdns-62.org, ns-1904.awsdns-46.co.uk, ns-280.awsdns-35.com, ns-651.awsdns-17.net
NS in the zone
ns-1526.awsdns-62.org, ns-1904.awsdns-46.co.uk, ns-280.awsdns-35.com, ns-651.awsdns-17.net
NameserverAddressesNetwork (AS)Glue
ns-1526.awsdns-62.org205.251.197.246 2600:9000:5305:f600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1904.awsdns-46.co.uk205.251.199.112 2600:9000:5307:7000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-280.awsdns-35.com205.251.193.24 2600:9000:5301:1800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-651.awsdns-17.net205.251.194.139 2600:9000:5302:8b00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1526.awsdns-62.org, ns-1904.awsdns-46.co.uk, ns-280.awsdns-35.com, ns-651.awsdns-17.net.
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .com, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1526.awsdns-62.org 205.251.197.246NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1526.awsdns-62.org 2600:9000:5305:f600::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1904.awsdns-46.co.uk 205.251.199.112NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1904.awsdns-46.co.uk 2600:9000:5307:7000::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-280.awsdns-35.com 205.251.193.24NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-280.awsdns-35.com 2600:9000:5301:1800::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-651.awsdns-17.net 205.251.194.139NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-651.awsdns-17.net 2600:9000:5302:8b00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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 1 · primary ns-1526.awsdns-62.org

Found

Primary (MNAME)
ns-1526.awsdns-62.org
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1526.awsdns-62.org (205.251.197.246)1
ns-1526.awsdns-62.org (2600:9000:5305:f600::1)1
ns-1904.awsdns-46.co.uk (205.251.199.112)1
ns-1904.awsdns-46.co.uk (2600:9000:5307:7000::1)1
ns-280.awsdns-35.com (205.251.193.24)1
ns-280.awsdns-35.com (2600:9000:5301:1800::1)1
ns-651.awsdns-17.net (205.251.194.139)1
ns-651.awsdns-17.net (2600:9000:5302:8b00::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-1526.awsdns-62.org is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

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

warn

27 records at the apex

Found

Read from
205.251.197.246:53
TypeValueTTL
SOAns-1526.awsdns-62.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1526.awsdns-62.org.172800
NSns-1904.awsdns-46.co.uk.172800
NSns-280.awsdns-35.com.172800
NSns-651.awsdns-17.net.172800
A18.66.102.6860
A18.66.102.6960
A18.66.102.1960
A18.66.102.11360
MX10 eu-smtp-inbound-1.mimecast.com.86400
MX10 eu-smtp-inbound-2.mimecast.com.86400
TXT"0dj461pqtnd8hv244hdblv6cbwj6t36w"86400
TXT"1xxk25l1c311dqk056h3222mgc8lfy5h"86400
TXT"MS=ms44993872"86400
TXT"ZrSY6mOTIsuwhJfIfhKTNcPBzg5waWVGkM3nTvW4ojSicBxAq4Y/9ItJ8nlfIHB78xH/Pex5qTsA1MKzCB/YDA=="86400
TXT"_6oecz6babfats862rwf8qhc3tp7xpdk"86400
TXT"_fe08iovcbz75vcnewsu2bya3beancvo"86400
TXT"_uy887msfy9ustrldsfp8d5cdhff3mvj"86400
TXT"apple-domain-verification=mkzz9FXn66APtcne"86400
TXT"atlassian-domain-verification=Y9f4vgASLepy0iEEcJ3HLxGmDmYvG1MfbYBvkhGJCtARF367Ne/I7aB2hkKIa9MW"86400
TXT"bjXOk843nf8u"86400
TXT"brevo-code:f45729e28fd18b87c7f1c63ec3b88ebe"86400
TXT"fastly-domain-delegation-sq4ttnkcqq7jqjoknvcd-573548-2023-02-14"86400
TXT"fastly-domain-delegation-twcrndsmq9zt9nmrofex-00659278-2026-04-08"86400
TXT"google-site-verification=DgFdiVMFWnrBkwBplUXe9XFfSkS-S3wtygOsGMr_h7k"86400
TXT"mandrill_verify.JGiGBS4bdFDKNvSPf1xdPw"86400
TXT"v=spf1 include:spf.maxxton.com include:_spf.exactonline.nl include:eu._netblocks.mimecast.com include:spf.mailjet.com include:spf.mandrillapp.com include:_spfededoc.idline.fr include:spf.protection.outlook.com ~all"86400

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 2d; resolvers may use either.
    #32
  • ✓ 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