crucial.fr

Checked 22 October 2026, 02:28 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.fr country-code · CSC CORPORATE DOMAINS INC. · expires 2028-05-27

Found

TLD
.fr (country-code)
ICANN policies apply
no
Registrar
CSC CORPORATE DOMAINS INC.
Registered
30 November 2009
Last changed
13 August 2026
Expires
27 May 2028
Status
active
Registry nameservers
ns1.micron.com, ns2.micron.com, ns3.micron.com, ns4.micron.com
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 2028-05-27 #3
    The registration is valid until 2028-05-27 (583 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.micron.com, ns2.micron.com, ns3.micron.com, ns4.micron.com

Found

Parent zone
fr
Delegation from
d.nic.fr (194.0.9.1)
NS at the parent
ns1.micron.com, ns2.micron.com, ns3.micron.com, ns4.micron.com
NS in the zone
ns1.micron.com, ns2.micron.com, ns3.micron.com, ns4.micron.com
NameserverAddressesNetwork (AS)Glue
ns1.micron.com205.251.192.157AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns2.micron.com205.251.195.109AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns3.micron.com205.251.199.109AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns4.micron.com205.251.197.172AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.micron.com, ns2.micron.com, ns3.micron.com, ns4.micron.com.
  • ✓ 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 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 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
  • i
    All nameserver names under .com
    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

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.micron.com 205.251.192.157NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns2.micron.com 205.251.195.109NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns3.micron.com 205.251.199.109NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns4.micron.com 205.251.197.172NOERROR, 3 ms, authoritativenoyes / yesrefused-

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 1 · primary ns1.micron.com

Found

Primary (MNAME)
ns1.micron.com
Contact (RNAME)
hostmaster.micron.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.micron.com (205.251.192.157)1
ns2.micron.com (205.251.195.109)1
ns3.micron.com (205.251.199.109)1
ns4.micron.com (205.251.197.172)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 ns1.micron.com is one of the listed nameservers.
  • ✓ Contact hostmaster@micron.com #25
    The SOA RNAME hostmaster.micron.com means hostmaster@micron.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

info

8 records at the apex

Found

Read from
205.251.192.157:53
TypeValueTTL
SOAns1.micron.com. hostmaster.micron.com. 1 7200 900 1209600 86400300
NSns1.micron.com.3600
NSns2.micron.com.3600
NSns3.micron.com.3600
NSns4.micron.com.3600
A159.60.141.157300
TXT"google-site-verification=o9WIb8FBhD6Rc9jIAwapp-fMKHVNOlBPk2VH1X3sDfo"3600
TXT"v=spf1 include:mktomail.com include:digitalrivercontent.net -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, 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