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Total

DNS

Email

Security

Network

100

Availability

Domainnhk.jp

IPv42

IPv60

MX records1

StatusActive

Domain technical report

nhk.jp

Generated: 2026-08-09T12:46:23-05:00 · Cached result

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IPv42

IPv60

MX1

NS3

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

3 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

1 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

195 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers0 / 35 pts · Security

0 of 9 evaluated headers detected.

✓

PTR reverse DNS30 / 30 pts · Network

PTR: a5406b0d2ed15a0dc.awsglobalaccelerator.com

✓

IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)

13.248.143.126
76.223.16.232

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

10 mail.nhk.jp.

TXT

6 record(s)

"5gmuHoeUOkN38Xi2CfqQYd3LVgfDgQ"
"v=spf1 +ip4:133.127.68.0/24 +ip4:133.127.64.128/25 +ip4:133.127.69.160/27 +ip4:133.127.66.64/26 +ip4:211.2.164.234 include:smp.ne.jp include:amazonses.com include:spf.tricorn.net ~all"
"_lcgrelrgy0ybf1s34amg2mt2yv6g20x"
"notion-domain-verification=UxUlq512dY7LQP5atqsiqjgGJ56JWp0D1cpzqRH9zOK"
"ELdSqIAku3mEWyKNDYyc8OeXhkOboFok0331_1420290"
"google-site-verification=e5drkT2r-1rZoo5pfbfIyoIzLRgTot_6uV6BluVapio"

NS

3 record(s)

ns012-h56n53352g8r0rhn.h.d-53.jp.
ns012-h56n53352g8r0rhn.h.d-53.net.
ns012-h56n53352g8r0rhn.h.d-53.info.

SOA

1 record(s)

ns000.d-53.net. dns-managers.iij.ad.jp. 415 3600 600 604800 900

CAA

0 record(s)

—

Not configured

DS

1 record(s)

15959 13 2 999B5385245C3E979CD148561D797DC0129399ECFB5AD181E8DBAD9E FC9ABB32

DNSKEY

2 record(s)

257 3 13 WF6ZGcgfH+CsQHl89Us/Uzj5fnwOAYWDTsWm6DC3xKgi/dUiqw/xhN/U U/dl1+fUjRFAW5xDV6SJAdCFilUVDg==
256 3 13 bOOi6jVgANVWofn3Y3CEUnVFlo/AWE2hngAQitJilSa1DDHiDEaru5Nx EscTBpZk3LXLGU+Li7B+5Chil9GuCQ==

RRSIG

3 record(s)

A 13 2 28800 20260830010106 20260730010106 4369 nhk.jp. q8qOx6sTrB9wdRke0CLCg3X/hJQNf/wrlXLlsQr5H5uy2dfjHA7xLg+L Q2Oa8NZ3q1U2bU12UeAdRpu28da2mA==
DNSKEY 13 2 28800 20260830010106 20260730010106 15959 nhk.jp. 78Ef4YpvBEVMaCSe/x1DebPP3qo9bPaxx3eqM7xC+Gv/siEzao6MVCRL NWTm5ET0u0oOr6EyEjZ15dwIiCYOrA==
DS 8 2 7200 20260907174503 20260808174503 11529 jp. g9KIjV9s1eaPGqHf9LbLkuTuZx94XSHDCGsOMFgA/8Tf0ZBuX4+re6/W gZUiOsu1dDLFfahcGJa85YSCD13u6mmwu2pQX3voRU8F6wsEqrkFarUn Xjx9NGgayIxi0q0FYMSMAXbWf7oXMbGdHFTen35tthpJNGJs6iUttoid gAA=

NSEC

0 record(s)

—

Not configured

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 +ip4:133.127.68.0/24 +ip4:133.127.64.128/25 +ip4:133.127.69.160/27 +ip4:133.127.66.64/26 +ip4:211.2.164.234 include:smp.ne.jp include:amazonses.com include:spf.tricorn.net ~all

DMARC

Configured

v=DMARC1; p=none; rua=mailto:dmarc-rua@nhk.jp

DKIM

Selector s1

k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwRTySRSVoUr+pkXx1E5LViCmvHLabPLjN6jQpIZaFUAJINwSn69cYYc1/c1NLZglD/BJInDNyiVkOE6KamQWnHKbx8Q1pBR0rXvH0lpZ3NXSxuQ7gSGvyHtFvjeFBnt3VQ714RwbFsWv3EU6KXb7sr7aSN+FSlCxfVT4cLUWgwAwX1wJj/IUHALYO2vGih/bxDTANhknC6rv3OB3mpeY//hIXK2GxqDLBgH/vgE08gX4FOEusaFRrOHhEqc9qqvV9k3bUPdYqONJwpAbsPgWRmV+dcefYyDNku2q7CCAC+NCReWh410K6ivyFJE8qnOPC8jcUGh2SrDmAokGWYkeuQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

No data

Title

Description

Final URL

https://nhk.jp/

HTTP status

HTTP

Status

HTTP/2 200

Final URL

https://www.nhk.or.jp/

Version

Server

nginx

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Cybertrust Japan Co., Ltd.

*.nhk.jp

Valid from

2026-02-03T17:24:22-06:00

Valid until

2027-02-21T08:59:00-06:00

Days remaining

195

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

0 active

—

HSTSNot detected

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

—

X-Frame-OptionsNot detected

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

13.248.143.126, 76.223.16.232

65,90 ms

Cloudflare

1.1.1.1

13.248.143.126, 76.223.16.232

143,30 ms

Quad9

9.9.9.9

13.248.143.126, 76.223.16.232

184,18 ms

OpenDNS

208.67.222.222

13.248.143.126, 76.223.16.232

541,47 ms

AdGuard

94.140.14.14

13.248.143.126, 76.223.16.232

255,37 ms

IP, geolocation and ASNAssociated network information

13.248.143.126

No data

success

country

region

city

asn

organization

isp

76.223.16.232

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

mail.nhk.jp

Port 25: Closed/unreachable - 30.3 ms - 
Port 465: Closed/unreachable - 158.2 ms - 
Port 587: Closed/unreachable - 155.2 ms -

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