kakaku.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 · GMO Internet Group, Inc. d/b/a Onamae.com · expires 2027-07-07

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GMO Internet Group, Inc. d/b/a Onamae.com
Registered
8 July 1998
Last changed
21 June 2026
Expires
7 July 2027
Status
client transfer prohibited
Registry nameservers
ns-1440.awsdns-52.org, ns-1784.awsdns-31.co.uk, ns-333.awsdns-41.com, ns-566.awsdns-06.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 2027-07-07 #3
    The registration is valid until 2027-07-07 (257 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

ns-1440.awsdns-52.org, ns-1784.awsdns-31.co.uk, ns-333.awsdns-41.com, ns-566.awsdns-06.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1440.awsdns-52.org, ns-1784.awsdns-31.co.uk, ns-333.awsdns-41.com, ns-566.awsdns-06.net
NS in the zone
ns-1440.awsdns-52.org, ns-1784.awsdns-31.co.uk, ns-333.awsdns-41.com, ns-566.awsdns-06.net
NameserverAddressesNetwork (AS)Glue
ns-1440.awsdns-52.org205.251.197.160 2600:9000:5305:a000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1784.awsdns-31.co.uk205.251.198.248 2600:9000:5306:f800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-333.awsdns-41.com205.251.193.77 2600:9000:5301:4d00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.77 2600:9000:5301:4d00::1
ns-566.awsdns-06.net205.251.194.54 2600:9000:5302:3600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1440.awsdns-52.org, ns-1784.awsdns-31.co.uk, ns-333.awsdns-41.com, ns-566.awsdns-06.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-1440.awsdns-52.org 205.251.197.160NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1440.awsdns-52.org 2600:9000:5305:a000::1NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns-1784.awsdns-31.co.uk 205.251.198.248NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1784.awsdns-31.co.uk 2600:9000:5306:f800::1NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns-333.awsdns-41.com 205.251.193.77NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-333.awsdns-41.com 2600:9000:5301:4d00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-566.awsdns-06.net 205.251.194.54NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-566.awsdns-06.net 2600:9000:5302:3600::1NOERROR, 5 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-566.awsdns-06.net

Found

Primary (MNAME)
ns-566.awsdns-06.net
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-1440.awsdns-52.org (205.251.197.160)1
ns-1440.awsdns-52.org (2600:9000:5305:a000::1)1
ns-1784.awsdns-31.co.uk (205.251.198.248)1
ns-1784.awsdns-31.co.uk (2600:9000:5306:f800::1)1
ns-333.awsdns-41.com (205.251.193.77)1
ns-333.awsdns-41.com (2600:9000:5301:4d00::1)1
ns-566.awsdns-06.net (205.251.194.54)1
ns-566.awsdns-06.net (2600:9000:5302:3600::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-566.awsdns-06.net 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

17 records at the apex

Found

Read from
205.251.197.160:53
TypeValueTTL
SOAns-566.awsdns-06.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1440.awsdns-52.org.3600
NSns-1784.awsdns-31.co.uk.3600
NSns-333.awsdns-41.com.3600
NSns-566.awsdns-06.net.3600
A162.159.141.66300
A172.66.1.62300
MX1 smtp.google.com.300
TXT"Notion_verify_j1QEHEFRoqchTRr4WNH3enD324FhoQjc3sP3AAv2qTXKDTXWt9EeZdwX5xUcmjG6WVtY5m"300
TXT"adobe-idp-site-verification=4cb9c393e8321fa2419afd26fecfb768b183a677a389ca44c06ea14880be5ce2"300
TXT"atlassian-domain-verification=MnhrUDOrRXjGV2lqkpxmk0zEYQOh2ZCKDfKkA3miEW26YrbTalPfgGB3PfmaTL2X"300
TXT"docker-verification=122b71d3-5cb3-4317-9121-0a171c4c1215"300
TXT"google-site-verification=pG4NHEnFMWkJ8cs6O3DF-MgEzyQt9rMJKH-vktnMVo8"300
TXT"openai-domain-verification=dv-UiZNHSX6u7EniHaZeZMe6D6B"300
TXT"slack-domain-verification=1wbRxMS4duTsnESN8Dyo5W2XlgNfWXBpfIWschg0"300
TXT"v=spf1 include:spf1.kakaku.com ~all"300
TXT"wrike-verification=MjczMTYzNjpmMzFmNTFmYjIxZGMxZjQ0YzQxMjExNzFhZmE5Yzc2OTk1MTBjN2NhOWRlZWQ3NzdiYjFjNGViMWFlNWE1OWNj"300

Checks

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