nikkei.com

Checked 22 October 2026, 10:03 UTC · via 8.8.8.8
!Passed with warnings
26 passed 1 warning 0 failed 4 info

Registration

info

.com generic · Japan Registry Services Co., Ltd. · expires 2027-05-10

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Japan Registry Services Co., Ltd.
Registered
9 May 1995
Last changed
8 May 2026
Expires
10 May 2027
Status
active
Registry nameservers
ns-1261.awsdns-29.org, ns-1974.awsdns-54.co.uk, ns-59.awsdns-07.com, ns-699.awsdns-23.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 2027-05-10 #3
    The registration is valid until 2027-05-10 (199 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

info

ns-1261.awsdns-29.org, ns-1974.awsdns-54.co.uk, ns-59.awsdns-07.com, ns-699.awsdns-23.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1261.awsdns-29.org, ns-1974.awsdns-54.co.uk, ns-59.awsdns-07.com, ns-699.awsdns-23.net
NS in the zone
ns-1261.awsdns-29.org, ns-1974.awsdns-54.co.uk, ns-59.awsdns-07.com, ns-699.awsdns-23.net
NameserverAddressesNetwork (AS)Glue
ns-1261.awsdns-29.org205.251.196.237 2600:9000:5304:ed00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1974.awsdns-54.co.uk205.251.199.182 2600:9000:5307:b600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-59.awsdns-07.com205.251.192.59 2600:9000:5300:3b00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.59 2600:9000:5300:3b00::1
ns-699.awsdns-23.net205.251.194.187 2600:9000:5302:bb00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1261.awsdns-29.org, ns-1974.awsdns-54.co.uk, ns-59.awsdns-07.com, ns-699.awsdns-23.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-1261.awsdns-29.org 205.251.196.237NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1261.awsdns-29.org 2600:9000:5304:ed00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1974.awsdns-54.co.uk 205.251.199.182NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1974.awsdns-54.co.uk 2600:9000:5307:b600::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-59.awsdns-07.com 205.251.192.59NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-59.awsdns-07.com 2600:9000:5300:3b00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-699.awsdns-23.net 205.251.194.187NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-699.awsdns-23.net 2600:9000:5302:bb00::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-59.awsdns-07.com

Found

Primary (MNAME)
ns-59.awsdns-07.com
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-1261.awsdns-29.org (205.251.196.237)1
ns-1261.awsdns-29.org (2600:9000:5304:ed00::1)1
ns-1974.awsdns-54.co.uk (205.251.199.182)1
ns-1974.awsdns-54.co.uk (2600:9000:5307:b600::1)1
ns-59.awsdns-07.com (205.251.192.59)1
ns-59.awsdns-07.com (2600:9000:5300:3b00::1)1
ns-699.awsdns-23.net (205.251.194.187)1
ns-699.awsdns-23.net (2600:9000:5302:bb00::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-59.awsdns-07.com 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

13 records at the apex

Found

Read from
205.251.196.237:53
TypeValueTTL
SOAns-59.awsdns-07.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1261.awsdns-29.org.3600
NSns-1974.awsdns-54.co.uk.3600
NSns-59.awsdns-07.com.3600
NSns-699.awsdns-23.net.3600
A52.223.0.196300
A35.71.146.174300
AAAA2600:9000:a615:e7f2:2ea1:cf50:5844:399f300
AAAA2600:9000:a717:b171:7f68:c620:6880:1f5a300
TXT"_globalsign-domain-verification=6GywlC8PVV6mLfL6ToMeVqCDeqFk9IDu2uEqmYPqx3"3600
TXT"google-site-verification=sCHUfuyR1VWGybNH_H8NKpx8qoTOThsWvRdJEFFct3A"3600
TXT"google-site-verification=u5NXJGWKL2jJDjCd0Dp7dEKZjelXtHsD1MpSOrQNplU"3600
TXT"pardot701623=26c78fcad309de091b229e5a46b00606d0e5a076f62146c2a27fd54d687cc993"3600

Checks

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