nippon.com

Checked 22 October 2026, 10:03 UTC · via 8.8.8.8
!Passed with warnings
24 passed 1 warning 0 failed 6 info

Registration

info

.com generic · GMO Internet Group, Inc. d/b/a Onamae.com · expires 2027-02-15

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GMO Internet Group, Inc. d/b/a Onamae.com
Registered
14 February 1992
Last changed
16 June 2026
Expires
15 February 2027
Status
active
Registry nameservers
01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp
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 2027-02-15 #3
    The registration is valid until 2027-02-15 (115 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

01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp
NS in the zone
01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp
NameserverAddressesNetwork (AS)Glue
01.dnsv.jp157.7.32.53 2400:8500:3300::53AS55907 GMO-DNS-R1 - GMO Internet, Inc., JP AS55907 GMO-DNS-R1 - GMO Internet, Inc., JP-
02.dnsv.jp157.7.33.53AS55907 GMO-DNS-R1 - GMO Internet, Inc., JP-
03.dnsv.jp157.7.34.53 2400:8500:3000::53AS55907 GMO-DNS-R1 - GMO Internet, Inc., JP AS55907 GMO-DNS-R1 - GMO Internet, Inc., JP-
04.dnsv.jp157.7.35.53 2400:8500:3fff::53AS55907 GMO-DNS-R1 - GMO Internet, Inc., JP AS55907 GMO-DNS-R1 - GMO Internet, Inc., JP-

Checks

  • ✓ 4 nameservers #6
    Delegated to 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp.
  • ✓ 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 3 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS55907 (GMO-DNS-R1 - GMO Internet, Inc., JP): 7 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 .jp
    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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: 02.dnsv.jp.
    #13

Nameservers

pass

7 of 7 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
01.dnsv.jp 157.7.32.53NOERROR, 261 ms, authoritativenoyes / yesrefused-
01.dnsv.jp 2400:8500:3300::53NOERROR, 246 ms, authoritativenoyes / yesrefused-
02.dnsv.jp 157.7.33.53NOERROR, 263 ms, authoritativenoyes / yesrefused-
03.dnsv.jp 157.7.34.53NOERROR, 256 ms, authoritativenoyes / yesrefused-
03.dnsv.jp 2400:8500:3000::53NOERROR, 248 ms, authoritativenoyes / yesrefused-
04.dnsv.jp 157.7.35.53NOERROR, 255 ms, authoritativenoyes / yesrefused-
04.dnsv.jp 2400:8500:3fff::53NOERROR, 264 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 7 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 1781576310 · primary 01.dnsv.jp

Found

Primary (MNAME)
01.dnsv.jp
Contact (RNAME)
hostmaster.dnsv.jp
Serial
1781576310
Refresh / retry
3600 s / 900 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
01.dnsv.jp (157.7.32.53)1781576310
01.dnsv.jp (2400:8500:3300::53)1781576310
02.dnsv.jp (157.7.33.53)1781576310
03.dnsv.jp (157.7.34.53)1781576310
03.dnsv.jp (2400:8500:3000::53)1781576310
04.dnsv.jp (157.7.35.53)1781576310
04.dnsv.jp (2400:8500:3fff::53)1781576310

Checks

  • ✓ Serial 1781576310 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 15m, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver 01.dnsv.jp is one of the listed nameservers.
  • ✓ Contact hostmaster@dnsv.jp #25
    The SOA RNAME hostmaster.dnsv.jp means hostmaster@dnsv.jp.
  • ✓ Timestamp serial #26
    The serial 1781576310 is a Unix timestamp (2026-06-16 02:18 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

14 records at the apex

Found

Read from
157.7.32.53:53
TypeValueTTL
SOA01.dnsv.jp. hostmaster.dnsv.jp. 1781576310 3600 900 604800 30086400
NS01.dnsv.jp.86400
NS02.dnsv.jp.86400
NS03.dnsv.jp.86400
NS04.dnsv.jp.86400
A18.65.185.84300
MX5 alt1.aspmx.l.google.com.3600
MX5 alt2.aspmx.l.google.com.3600
MX10 alt3.aspmx.l.google.com.3600
MX10 alt4.aspmx.l.google.com.3600
MX1 aspmx.l.google.com.3600
TXT"apple-domain-verification=rrN7HXozHRDHJpO6"3600
TXT"google-site-verification=Zn4FwzEzfhzqhrvCKYoGqajqd1cm_a4zhPRyekeq6ss"3600
TXT"v=spf1 include:9foceyges9.powerspf.com -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1h, 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