kao.com

Checked 22 October 2026, 09:30 UTC · via 8.8.8.8
!Passed with warnings
27 passed 1 warning 0 failed 3 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-11-17

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
18 November 1996
Last changed
6 November 2025
Expires
17 November 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns1-04.azure-dns.com, ns2-04.azure-dns.net, ns3-04.azure-dns.org, ns4-04.azure-dns.info
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 2027-11-17 #3
    The registration is valid until 2027-11-17 (390 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

ns1-04.azure-dns.com, ns2-04.azure-dns.net, ns3-04.azure-dns.org, ns4-04.azure-dns.info

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1-04.azure-dns.com, ns2-04.azure-dns.net, ns3-04.azure-dns.org, ns4-04.azure-dns.info
NS in the zone
ns1-04.azure-dns.com, ns2-04.azure-dns.net, ns3-04.azure-dns.org, ns4-04.azure-dns.info
NameserverAddressesNetwork (AS)Glue
ns1-04.azure-dns.com13.107.236.4 2603:1061:0:700::4AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US13.107.236.4 2603:1061:0:700::4
ns2-04.azure-dns.net150.171.21.4 2620:1ec:8ec:700::4AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-
ns3-04.azure-dns.org204.14.183.4 2a01:111:4000:700::4AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-
ns4-04.azure-dns.info208.84.5.4 2620:1ec:bda:700::4AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1-04.azure-dns.com, ns2-04.azure-dns.net, ns3-04.azure-dns.org, ns4-04.azure-dns.info.
  • ✓ 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 (AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, 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, .info, .net, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1-04.azure-dns.com 13.107.236.4NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns1-04.azure-dns.com 2603:1061:0:700::4NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns2-04.azure-dns.net 150.171.21.4NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2-04.azure-dns.net 2620:1ec:8ec:700::4NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns3-04.azure-dns.org 204.14.183.4NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns3-04.azure-dns.org 2a01:111:4000:700::4NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns4-04.azure-dns.info 208.84.5.4NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns4-04.azure-dns.info 2620:1ec:bda:700::4NOERROR, 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 172 · primary ns1-04.azure-dns.com

Found

Primary (MNAME)
ns1-04.azure-dns.com
Contact (RNAME)
azuredns-hostmaster.microsoft.com
Serial
172
Refresh / retry
3600 s / 300 s
Expire
2419200 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1-04.azure-dns.com (13.107.236.4)172
ns1-04.azure-dns.com (2603:1061:0:700::4)172
ns2-04.azure-dns.net (150.171.21.4)172
ns2-04.azure-dns.net (2620:1ec:8ec:700::4)172
ns3-04.azure-dns.org (204.14.183.4)172
ns3-04.azure-dns.org (2a01:111:4000:700::4)172
ns4-04.azure-dns.info (208.84.5.4)172
ns4-04.azure-dns.info (2620:1ec:bda:700::4)172

Checks

  • ✓ Serial 172 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 5m, expire 28d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1-04.azure-dns.com is one of the listed nameservers.
  • ✓ Contact azuredns-hostmaster@microsoft.com #25
    The SOA RNAME azuredns-hostmaster.microsoft.com means azuredns-hostmaster@microsoft.com.
  • ✓ Counter serial #26
    The serial 172 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

27 records at the apex

Found

Read from
13.107.236.4:53
TypeValueTTL
SOAns1-04.azure-dns.com. azuredns-hostmaster.microsoft.com. 172 3600 300 2419200 3003600
NSns1-04.azure-dns.com.300
NSns2-04.azure-dns.net.300
NSns3-04.azure-dns.org.300
NSns4-04.azure-dns.info.300
A54.199.94.64300
A176.34.3.132300
MX10 kao-com.mail.protection.outlook.com.300
TXT"v=spf1 +ip4:198.107.132.38 +ip4:80.74.8.38 a:dnsus1.accellion.com include:spf.protection.outlook.com +ip4:210.190.116.0/25 +ip4:52.197.172.91 +ip4:125.6.132.232 +ip4:54.178.141.248 include:mktomail.com +ip4:142.75.67.19 include:sfx4.usaco.co.jp include:ma" "il.patent.ne.jp include:crmstyle.com include:spf.repica.jp include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all"3600
TXT"adobe-idp-site-verification=cd2664de-a700-468c-ac67-4ffcb407064d"3600
TXT"Jj6JxxTcGECE1EB3DTyrTDl7VwhQOqPOYQy3F15eGcsqiEpf8QtoFLmVUXmkVzcCoBxHzzUUreOf+9Asz452Cg=="3600
TXT"google-site-verification=BbQv4Eu9h1eJB9abC4XOMYE_uBCmcm0VDseepRXOvzw"3600
TXT"docusign=d9eafe8f-c684-44b6-bda8-6b2a34fff98d"3600
TXT"docusign=9ffaad89-b3e9-4466-b966-2c27498d484e"3600
TXT"shopify-verification-code=YjEmLnQMSH7YZA0J5vvE7deGZg5zMt"3600
TXT"google-site-verification=4BZcUFmg8aiR5PUtNmdzWq9-s1STLNXo0cu1mex2CFs"3600
TXT"extensis-domain-verification=42def3cd-9d65-4ac6-996a-5c897ff8c814"3600
TXT"atlassian-domain-verification=CujVO8PebwQwTcx4/bauuHeaPdMNk65FsARziGU7j63IkrSezoCZsPiSn2kEDSmq"3600
TXT"openai-domain-verification=dv-BOLCY3wdK1u3TmhlnkmTsEE8"3600
TXT"wrike-verification=MzMwMDQ5MzowNmMwYjU0MmYyMzA1MGM0NjhhZjBiMDExOGM0OWY2NjhlNDkzMzcwM2NjNTgyMmNiNzMyNTA5MjcwZWE0YzY0"3600
TXT"anthropic-domain-verification-d4xvd2=Ool61vsVF0sBb2QMFgO6tKiE4"3600
TXT"anthropic-domain-verification-d4xvd2=sSJaXzTuoqA3kHJ4opLyzmHkV"3600
TXT"linkedin-site-verification=dff940c5-d2fb-4a18-86f7-93386551a4be"3600
TXT"00Dj0000000H3dp=1TBUz0000000AH7"3600
TXT"linkedin-site-verification=1af89597-cf89-4af1-8a64-9cc2c69b1210"3600
TXT"deepl-domain-verification=b0cc4e70f73c4f40be3a0f3c9df7fd76"3600
TXT"canva-site-verification=RvB_kC8G8D71vegw7tO9wg"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 5m. The NS TTL at the parent is 2d and in the zone 5m; 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