kw.com

Checked 22 October 2026, 09:33 UTC · via 8.8.8.8
!Passed with warnings
26 passed 1 warning 0 failed 4 info

Registration

info

.com generic · DNC Holdings, Inc. · expires 2027-04-18

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
DNC Holdings, Inc.
Registered
17 April 1995
Last changed
4 March 2026
Expires
18 April 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1142.awsdns-14.org, ns-2039.awsdns-62.co.uk, ns-211.awsdns-26.com, ns-763.awsdns-31.net
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 2027-04-18 #3
    The registration is valid until 2027-04-18 (177 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns-1142.awsdns-14.org, ns-2039.awsdns-62.co.uk, ns-211.awsdns-26.com, ns-763.awsdns-31.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1142.awsdns-14.org, ns-2039.awsdns-62.co.uk, ns-211.awsdns-26.com, ns-763.awsdns-31.net
NS in the zone
ns-1142.awsdns-14.org, ns-2039.awsdns-62.co.uk, ns-211.awsdns-26.com, ns-763.awsdns-31.net
NameserverAddressesNetwork (AS)Glue
ns-1142.awsdns-14.org205.251.196.118 2600:9000:5304:7600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-2039.awsdns-62.co.uk205.251.199.247 2600:9000:5307:f700::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-211.awsdns-26.com205.251.192.211 2600:9000:5300:d300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.211 2600:9000:5300:d300::1
ns-763.awsdns-31.net205.251.194.251 2600:9000:5302:fb00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1142.awsdns-14.org, ns-2039.awsdns-62.co.uk, ns-211.awsdns-26.com, ns-763.awsdns-31.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-1142.awsdns-14.org 205.251.196.118NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1142.awsdns-14.org 2600:9000:5304:7600::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-2039.awsdns-62.co.uk 205.251.199.247NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-2039.awsdns-62.co.uk 2600:9000:5307:f700::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-211.awsdns-26.com 205.251.192.211NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-211.awsdns-26.com 2600:9000:5300:d300::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-763.awsdns-31.net 205.251.194.251NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-763.awsdns-31.net 2600:9000:5302:fb00::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-2039.awsdns-62.co.uk

Found

Primary (MNAME)
ns-2039.awsdns-62.co.uk
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-1142.awsdns-14.org (205.251.196.118)1
ns-1142.awsdns-14.org (2600:9000:5304:7600::1)1
ns-2039.awsdns-62.co.uk (205.251.199.247)1
ns-2039.awsdns-62.co.uk (2600:9000:5307:f700::1)1
ns-211.awsdns-26.com (205.251.192.211)1
ns-211.awsdns-26.com (2600:9000:5300:d300::1)1
ns-763.awsdns-31.net (205.251.194.251)1
ns-763.awsdns-31.net (2600:9000:5302:fb00::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-2039.awsdns-62.co.uk 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

info

37 records at the apex

Found

Read from
205.251.196.118:53
TypeValueTTL
SOAns-2039.awsdns-62.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1142.awsdns-14.org.3600
NSns-2039.awsdns-62.co.uk.3600
NSns-211.awsdns-26.com.3600
NSns-763.awsdns-31.net.3600
A104.18.127.18900
A104.18.128.18900
MX1 aspmx.l.google.com.3600
MX10 aspmx2.googlemail.com.3600
MX10 aspmx3.googlemail.com.3600
MX5 alt1.aspmx.l.google.com.3600
MX5 alt2.aspmx.l.google.com.3600
TXT"7992A0C3B58F1B17D4DA40FF09BE519F"3600
TXT"MS=ms46620544"3600
TXT"ZOOM_verify_aK2EkjVDwr3OSTXo2AjJYo"3600
TXT"adobe-idp-site-verification=1a870daab88acae93ce2162c99f195890d625d9a450f3c73696009d5a2b4f83e"3600
TXT"apple-domain-verification=IARCI06gosCqSX12"3600
TXT"apple-domain-verification=xnmBOVCXF2eISfd2"3600
TXT"asv=98ec7f0636fde944bae50d4f194ddfb7"3600
TXT"atlassian-domain-verification=qHwXNRdgkVP4CJIaHIcjCXiwZZgDB38ir61TvUyoav8NL/U36LBLPEXbPT1chM9Q"3600
TXT"ca3-63fe6327fcc24f08b62ea39fd3a2085a"3600
TXT"ca3-95beefab4db3488793af8047c7de1952"3600
TXT"globalsign-domain-verification=-VCb6cjBzdjMFBcrKB55pTskjujs3O93sMgq6jz_9u"3600
TXT"globalsign-domain-verification=-VCb6cjBzdjMFBcrKB55pTskjujs3O93sMgq6jz_9u."3600
TXT"google-site-verification=5le0orEJWmjMHpG6ytYK0pmLQz8Di3JfqU4FnMW0BDg"3600
TXT"google-site-verification=8ByMdIvciqRs18OxA3d5fZQ1D16_C85kGsvcKwbFVmk"3600
TXT"google-site-verification=8m-U04HyehHCiM301SJIwKLsn-QunG0n_3uBuUdHxNs"3600
TXT"google-site-verification=L76baT4aw1hXaOQDonW8Ccn5akOYGFko2K7j56gzOkE"3600
TXT"google-site-verification=ZE3XY6_pQmLMHGuzClj2QmBpO7OtvHnsse_82WGiJh8"3600
TXT"hpe-greenlake-domain-verification=494332444d33386e5744764b69356c396a5472304f54664e304b586a7039506e"3600
TXT"jamf-site-verification=__nMTaXe2MrkGcoaXW6m2Q"3600
TXT"mailjet-domain-validation=LHHNkssYG"3600
TXT"miro-verification=e3a0c03031b99688ebc04721b0fdd327c1b1f39d"3600
TXT"q1k6t1shftdztrhj25m7c46r8ltcry8y"3600
TXT"shopify-verification-code=iDQqly9Kupd7OZeT7XuXWErGD5ydqB"3600
TXT"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"3600
TXT"zapier-domain-verification-challenge=00438838-9bcd-4276-b6ed-46030d95d66b"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 15m, MX 1h, NS 1h. The NS TTL at the parent is 2d and in the zone 1h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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