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Total

DNS

Email

Security

Network

100

Availability

Domainau.com

IPv41

IPv61

MX records8

StatusActive

Domain technical report

【公式】au | スマートフォン・携帯・料金プラン・インターネット

au.com

au（エーユー）の公式サイト。スマートフォン・携帯電話・インターネット回線の最新料金プランやキャンペーン、5G対応サービス・端末情報など、個人のお客さま向けサービスを幅広くご案内します。

Generated: 2026-08-09T08:47:50-05:00 · Cached result

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IPv41

IPv61

MX8

NS4

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

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

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

8 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

48 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓

IPv6 connectivity35 / 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

1 record(s)

175.129.0.108

AAAA

1 record(s)

2001:268:fa03:500:175:129:0:108

CNAME

0 record(s)

—

Not configured

MX

8 record(s)

10 mx21.au.com.
10 mx12.au.com.
10 mx23.au.com.
10 mx11.au.com.
10 mx13.au.com.
10 mx22.au.com.
10 mx24.au.com.
10 mx14.au.com.

TXT

6 record(s)

"v=spf1 include:spf-msg.au.com include:spf-nao.ezweb.ne.jp include:spf-az.ezweb.ne.jp include:spf-ms.ezweb.ne.jp include:saigai.au.com ~all"
"c0lq1l6y7xsj3mk71bg4vdrt1w68s0s8"
"google-site-verification=8WAX_9SJBCx3lpiqXi1IE-xLhIGNigz6k-KoJBTEVcs"
"facebook-domain-verification=mroapooxpo8mbwuajmzynp8ni6g32m"
"_d6s29sxqmyp1ebktz2fedflt6sp5jqo"
"google-site-verification=tWk10LY-wUsS3rhdu-DKdHDIG08gcEPQaCQJRlU91wg"

NS

4 record(s)

dnsa01.kddi.ne.jp.
dns103.kddi.ne.jp.
dns104.kddi.ne.jp.
dnsa02.kddi.ne.jp.

SOA

1 record(s)

dns103.kddi.ne.jp. postmaster.kddi.com. 2026080701 3600 1800 1209600 43200

SPF

Configured

v=spf1 include:spf-msg.au.com include:spf-nao.ezweb.ne.jp include:spf-az.ezweb.ne.jp include:spf-ms.ezweb.ne.jp include:saigai.au.com ~all

DMARC

Configured

v=DMARC1; p=reject; rua=mailto:kddi00001-ra@dmarc25.jp, mailto:report_dmarc_rua.au@au.com

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

【公式】au | スマートフォン・携帯・料金プラン・インターネット

Description

Final URL

https://www.au.com/

HTTP status

206

HTTP

Status

HTTP/2 200

Final URL

https://www.au.com/

Version

Server

BigIP

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

GlobalSign nv-sa

*.au.com

Valid from

2025-08-25T21:01:07-05:00

Valid until

2026-09-26T21:01:06-05:00

Days remaining

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES128-GCM-SHA256

Security headers

3 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

—

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

175.129.0.108

34,55 ms

Cloudflare

1.1.1.1

175.129.0.108

178,28 ms

Quad9

9.9.9.9

175.129.0.108

361,82 ms

OpenDNS

208.67.222.222

175.129.0.108

819,67 ms

AdGuard

94.140.14.14

175.129.0.108

419,63 ms

IP, geolocation and ASNAssociated network information

175.129.0.108

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

mx21.au.com

Port 25: Closed/unreachable - 162.4 ms - 
Port 465: Closed/unreachable - 4184.4 ms - 
Port 587: Closed/unreachable - 4008.6 ms -

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