horiba.com

Checked 22 October 2026, 09:12 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · 1API GmbH · expires 2027-07-23

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
1API GmbH
Registered
24 July 1994
Last changed
10 June 2026
Expires
23 July 2027
Status
client transfer prohibited
Registry nameservers
ns1.horiba.co.jp, ns3.horiba.co.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 2027-07-23 #3
    The registration is valid until 2027-07-23 (273 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

warn

ns1.horiba.co.jp, ns3.horiba.co.jp

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.horiba.co.jp, ns3.horiba.co.jp
NS in the zone
ns1.horiba.co.jp, ns3.horiba.co.jp
NameserverAddressesNetwork (AS)Glue
ns1.horiba.co.jp202.250.32.2AS37888 HORIBA-NET - HORIBA, Ltd., JP-
ns3.horiba.co.jp202.250.38.22AS37888 HORIBA-NET - HORIBA, Ltd., JP-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.horiba.co.jp, ns3.horiba.co.jp.
    #6
  • ✓ 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 2 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS37888 (HORIBA-NET - HORIBA, Ltd., JP): 2 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.horiba.co.jp 202.250.32.2NOERROR, 263 ms, authoritativenoyes / yesrefused-
ns3.horiba.co.jp 202.250.38.22NOERROR, 253 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 2 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 2026101901 · primary ns3.horiba.co.jp

Found

Primary (MNAME)
ns3.horiba.co.jp
Contact (RNAME)
root.ns3.horiba.co.jp
Serial
2026101901
Refresh / retry
3600 s / 1200 s
Expire
604800 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
ns1.horiba.co.jp (202.250.32.2)2026101901
ns3.horiba.co.jp (202.250.38.22)2026101901

Checks

  • ✓ Serial 2026101901 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 20m, expire 7d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns3.horiba.co.jp is one of the listed nameservers.
  • ✓ Contact root@ns3.horiba.co.jp #25
    The SOA RNAME root.ns3.horiba.co.jp means root@ns3.horiba.co.jp.
  • ✓ Date-based serial #26
    The serial 2026101901 follows the YYYYMMDDnn convention (2026-10-19).

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

21 records at the apex

Found

Read from
202.250.32.2:53
TypeValueTTL
SOAns3.horiba.co.jp. root.ns3.horiba.co.jp. 2026101901 3600 1200 604800 900300
NSns3.horiba.co.jp.300
NSns1.horiba.co.jp.300
A202.250.38.3043200
MX10 horiba.in.tmems-jp.trendmicro.com.300
TXT"duo_sso_verification=Y4X1KPzYNZ4xX0WY9gAbNDviqt6RnpEUmina3je1yI2hs7if1eHAKmrbGdTYQAoS"300
TXT"sending_domain925603=838df1ec178d308387b4361fbe8f51e6b4c65ffb48108f332f1fc537addcf534"300
TXT"cisco-ci-domain-verification=308643505cdfda13330ce9b7aed2b60b40344436882c2c55834a1390083db03b"300
TXT"atlassian-domain-verification=9OHhLEy2gUs9HopOnhZ/MNHczJrPsIiSIfj2K4UPlSW99cxUVRpbWkcVWa45EcSA"300
TXT"atlassian-domain-verification=XRWxCFbdaW0RKWNi4vdVHUcrHjBXmuK803rAHyJRkf155igIdUiBR3YsJbwN5xZo"300
TXT"trend-micro-v1-domain-verification.511fd87ed0928959a7d31caf3fddba89=57a0a140-6423-485f-bd5f-1604b5f2d6c2"300
TXT"v=spf1 include:spf.protection.outlook.com include:spf.tmems-jp.trendmicro.com a:ns1.horiba.co.jp a:ns3.horiba.co.jp a:lmx1.horiba.com a:jp2.mta.horiba.com a:jp3.mta.horiba.com +ip4:210.143.141.1/32 include:_spf.salesforce.com -all"300
TXT"MS=ms11711358"300
TXT"00D2v000001xYL4=1TBRA0000000Ear"300
TXT"c9d4f9eba7b95e1bc137ca43b6661c1e"300
TXT"0ed1fe018a09038d5aa0bd4c9e842307119733bfb8"300
TXT"apple-domain-verification=b9GHGF3ehEVArBAi"300
TXT"docusign=55b80e11-310a-4785-bab6-fc9489f2f668"300
TXT"X-PhishInsightCustom=5EMS7K0NTWCRUUBJA8KW2UQZJ737FDVKXQPF88Q9"300
TXT"pardot768023=dcb79cd78d2ae5214bb8e9ab23a375ffbd306975ceeafe4e072e3b3a16cfe23f"300
TXT"pardot972323=3275a50b35b2675025a0a4b9f02e2240909c2dd3ed8969a03c3946ac1e7b36ec"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 12h, 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