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Gridlode
Rank #4,960Updated November 10, 2026

au.com

【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 is registered with Key-Systems GmbH since April 3, 1998 (28.6 years). The registration expires on August 7, 2028. The site runs on cdnjs, Fastly, Google Fonts and 5 other technologies. Its email security grade is C. Its SSL certificate is issued by GlobalSign nv-sa and is valid for 130 more days.

Domain age
28.6 yrs
Technologies
8
Email security
C
SSL days left
130

Registration

RegistrarKey-Systems GmbH
IANA ID269
RegisteredApril 3, 1998
ExpiresAugust 7, 2028
UpdatedOctober 25, 2026
Statusclient transfer prohibited
Name serversdns103.kddi.ne.jp, dns104.kddi.ne.jp, dnsa01.kddi.ne.jp, dnsa02.kddi.ne.jp
DNSSECNot signed

DNS records

TypeValueTTL
A175.129.0.10883412
MXmx11.au.com 10600
MXmx24.au.com 10600
MXmx12.au.com 10600
MXmx23.au.com 10600
MXmx13.au.com 10600
MXmx14.au.com 10600
MXmx22.au.com 10600
MXmx21.au.com 10600
NSdns103.kddi.ne.jp86400
NSdnsa01.kddi.ne.jp86400
NSdns104.kddi.ne.jp86400
NSdnsa02.kddi.ne.jp86400
TXTgoogle-site-verification=8WAX_9SJBCx3lpiqXi1IE-xLhIGNigz6k-KoJBTEVcs86400
TXTv=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 ~all86400
TXTc0lq1l6y7xsj3mk71bg4vdrt1w68s0s886400
TXTgoogle-site-verification=tWk10LY-wUsS3rhdu-DKdHDIG08gcEPQaCQJRlU91wg86400
TXT_d6s29sxqmyp1ebktz2fedflt6sp5jqo86400
TXTfacebook-domain-verification=mroapooxpo8mbwuajmzynp8ni6g32m86400
AAAA2001:268:fa03:500:175:129:0:10877412

Technology stack

Analytics and advertising IDs

google_tag_manager:GTM-56CSDJ

SSL certificate

ValidValid
IssuerBE, GlobalSign GCC R46 OV TLS CA 2025, GlobalSign nv-sa
ExpiresMarch 20, 2027
Days remaining130
ProtocolTLSv1.2
Names*.au.com, au.com

Email security

CScore 68/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnSPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it.
  • warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
  • goodDMARC policy is reject: mail that fails authentication is blocked.
  • goodDMARC aggregate reports are sent to mailto:[email protected], mailto:[email protected].
  • good8 MX record(s) found.

Homepage metadata

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
Descriptionau(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。
Languageja
Canonicalhttps://www.au.com/
Structured dataOrganization
IndexableYes
Word count448

About au.com

Who is the registrar of au.com?

au.com is registered with Key-Systems GmbH (IANA ID 269).

When does au.com expire?

The current registration of au.com expires on August 7, 2028. It was first registered on April 3, 1998.

What technology does au.com use?

We detected 8 technologies on au.com, including cdnjs, Fastly, Google Fonts, jQuery, jQuery Migrate, Content Security Policy.

Does au.com protect its email with SPF and DMARC?

au.com scores 68/100 (grade C) for email security. SPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it. No DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.

What are the name servers of au.com?

au.com uses dns103.kddi.ne.jp, dnsa01.kddi.ne.jp, dns104.kddi.ne.jp, dnsa02.kddi.ne.jp.