supplychaindive.com

Checked 22 October 2026, 10:53 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · NameCheap, Inc. · expires 2027-06-07

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
NameCheap, Inc.
Registered
7 June 2016
Last changed
8 May 2026
Expires
7 June 2027
Status
client transfer prohibited
Registry nameservers
ivy.ns.cloudflare.com, sid.ns.cloudflare.com
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2027-06-07 #3
    The registration is valid until 2027-06-07 (228 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ivy.ns.cloudflare.com, sid.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ivy.ns.cloudflare.com, sid.ns.cloudflare.com
NS in the zone
ivy.ns.cloudflare.com, sid.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
ivy.ns.cloudflare.com172.64.32.120 108.162.192.120 173.245.58.120 2606:4700:50::adf5:3a78 2a06:98c1:50::ac40:2078 2803:f800:50::6ca2:c078AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.192.120 172.64.32.120 173.245.58.120 2606:4700:50::adf5:3a78 2803:f800:50::6ca2:c078 2a06:98c1:50::ac40:2078
sid.ns.cloudflare.com173.245.59.143 108.162.193.143 172.64.33.143 2a06:98c1:50::ac40:218f 2803:f800:50::6ca2:c18f 2606:4700:58::adf5:3b8fAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.193.143 172.64.33.143 173.245.59.143 2606:4700:58::adf5:3b8f 2803:f800:50::6ca2:c18f 2a06:98c1:50::ac40:218f

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ivy.ns.cloudflare.com, sid.ns.cloudflare.com.
    #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 6 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ivy.ns.cloudflare.com 172.64.32.120NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 108.162.192.120NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 173.245.58.120NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 2606:4700:50::adf5:3a78NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 2a06:98c1:50::ac40:2078NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ivy.ns.cloudflare.com 2803:f800:50::6ca2:c078NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
sid.ns.cloudflare.com 173.245.59.143NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
sid.ns.cloudflare.com 108.162.193.143NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
sid.ns.cloudflare.com 172.64.33.143NOERROR, 10 ms, authoritativenoyes / yesrefused2026.10.2
sid.ns.cloudflare.com 2a06:98c1:50::ac40:218fNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
sid.ns.cloudflare.com 2803:f800:50::6ca2:c18fNOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
sid.ns.cloudflare.com 2606:4700:58::adf5:3b8fNOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 12 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: ivy.ns.cloudflare.com: "2026.10.2"; sid.ns.cloudflare.com: "2026.10.2". 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 2417802527 · primary ivy.ns.cloudflare.com

Found

Primary (MNAME)
ivy.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417802527
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
ivy.ns.cloudflare.com (172.64.32.120)2417802527
ivy.ns.cloudflare.com (108.162.192.120)2417802527
ivy.ns.cloudflare.com (173.245.58.120)2417802527
ivy.ns.cloudflare.com (2606:4700:50::adf5:3a78)2417802527
ivy.ns.cloudflare.com (2a06:98c1:50::ac40:2078)2417802527
ivy.ns.cloudflare.com (2803:f800:50::6ca2:c078)2417802527
sid.ns.cloudflare.com (173.245.59.143)2417802527
sid.ns.cloudflare.com (108.162.193.143)2417802527
sid.ns.cloudflare.com (172.64.33.143)2417802527
sid.ns.cloudflare.com (2a06:98c1:50::ac40:218f)2417802527
sid.ns.cloudflare.com (2803:f800:50::6ca2:c18f)2417802527
sid.ns.cloudflare.com (2606:4700:58::adf5:3b8f)2417802527

Checks

  • ✓ Serial 2417802527 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ivy.ns.cloudflare.com is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2417802527 is a Unix timestamp (2046-08-13 19:48 UTC).

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

16 records at the apex

Found

Read from
172.64.32.120:53
TypeValueTTL
SOAivy.ns.cloudflare.com. dns.cloudflare.com. 2417802527 10000 2400 604800 18001800
NSivy.ns.cloudflare.com.86400
NSsid.ns.cloudflare.com.86400
A104.18.41.17300
A172.64.146.239300
AAAA2a06:98c1:310b::6812:2911300
AAAA2606:4700:4409::ac40:92ef300
MX10 us-smtp-inbound-1.mimecast.com.600
MX20 us-smtp-inbound-2.mimecast.com.600
TXT"0ed1fe018a02dc99d41261402bad19765110790a14"300
TXT"MS=ms81691065"300
TXT"facebook-domain-verification=eyme33aau7emsgqnmngdccq6j6it4d"300
TXT"google-site-verification=HRtuwkDFc535wodr_VQjYZERgkhp99dnortofGXD5mk"300
TXT"google-site-verification=f8ePU8TGtCuLy6gqgkeIJPDmCx-CdGXQz9VQQE7Qe-Q"300
TXT"pardot889213=86217c054bd7cc7fa9f7de99ae0ffa82d323a1b7c6e38590c06537c7172a46f5"300
TXT"v=spf1 include:spf.protection.outlook.com\194\160include:us._netblocks.mimecast.com\194\160include:eu._netblocks.mimecast.com\194\160-all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 10m, NS 1d. The NS TTL at the parent is 2d 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.
  • 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