Rank #7,365Updated November 10, 2026
kodansha.co.jp
講談社「おもしろくて、ためになる」を世界へ
The site runs on Amazon CloudFront, AOS, Content Security Policy and 4 other technologies. Its email security grade is B. Its SSL certificate is issued by Amazon and is valid for 197 more days.
- Domain age
- —
- Technologies
- 7
- Email security
- B
- SSL days left
- 197
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 13.231.99.251 | 300 |
| MX | aspmx.l.google.com 1 | 3600 |
| MX | aspmx2.googlemail.com 10 | 3600 |
| MX | aspmx3.googlemail.com 10 | 3600 |
| MX | alt1.aspmx.l.google.com 5 | 3600 |
| MX | alt2.aspmx.l.google.com 5 | 3600 |
| NS | ns-1360.awsdns-42.org | 300 |
| NS | ns-2039.awsdns-62.co.uk | 300 |
| NS | ns-274.awsdns-34.com | 300 |
| NS | ns-958.awsdns-55.net | 300 |
| TXT | MS=085508D4C0D0A8161AFB23E97085F7098BDAA106 | 300 |
| TXT | MS=ms10087093 | 300 |
| TXT | MS=ms22176288 | 300 |
| TXT | apple-domain-verification=11w2ahT1OXVAXgtA | 300 |
| TXT | figma-domain-verification=7be03bce0220e1f36f952e70cd48a6091c0c9c7389c22e7d6c92af8b2f8aff0b-1756958901 | 300 |
| TXT | google-site-verification=fzyGqswFYTL_z4eJ_uLwdMUrVabq7WqEZBKhp5VedC0 | 300 |
| TXT | notion-domain-verification=Edk7uCcxTTXtK5r2HGJaTPCzNRDBRIm4Ev0zTCWUPvl | 300 |
| TXT | pardot884203=c9a33ee98bd2985f9ced3c383feca8b92b538a398624af9776f0a13d029b482e | 300 |
| TXT | v=spf1 include:_spf.google.com +ip4:210.232.13.224/27 +ip4:219.101.182.24/32 +ip4:118.238.217.217/32 +ip4:163.43.136.149/32 +ip4:153.125.144.148/32 +ip4:35.72.225.0/25 +ip4:106.185.100.0/23 +ip4:106.185.96.0/23 +ip4:106.185.98.0/23 +ip4:210.166.79.114/32 +ip4:165.76.142.193/32 +ip4:126.139.43.238/32 +ip4:3.113.198.129/32 include:aspmx.pardot.com include:spf.protection.outlook.com include:spfd.protection.outlook.com include:spf-bma.mpme.jp ~all | 300 |
Technology stack
JavaScript library
Security
Tag manager
Video
Web server
Analytics and advertising IDs
google_tag_manager:GTM-MKH5KKPSSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, Amazon RSA 2048 S22, Amazon |
| Expires | May 27, 2027 |
| Days remaining | 197 |
| Protocol | TLSv1.3 |
| Names | kodansha.co.jp |
Email security
BScore 83/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- 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].
- goodDKIM keys found (selector: s1, s2).
- good5 MX record(s) found. Mail is handled by Google Workspace.
Homepage metadata
| Title | 講談社「おもしろくて、ためになる」を世界へ |
|---|---|
| Description | 講談社の公式ホームページ総合トップページ。講談社が出版する書籍・コミックの新刊情報、作品検索、会社情報、講談社が運営する各種サービス・コンテンツなどをご紹介します。 |
| Language | ja |
| Indexable | Yes |
| Word count | 956 |
About kodansha.co.jp
What technology does kodansha.co.jp use?
We detected 7 technologies on kodansha.co.jp, including Amazon CloudFront, AOS, Content Security Policy, HSTS, Google Tag Manager, YouTube.
Does kodansha.co.jp protect its email with SPF and DMARC?
kodansha.co.jp scores 83/100 (grade B) for email security. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection. No TLS-RPT record, so you won't hear about failed encrypted deliveries.
What are the name servers of kodansha.co.jp?
kodansha.co.jp uses ns-1360.awsdns-42.org, ns-2039.awsdns-62.co.uk, ns-274.awsdns-34.com, ns-958.awsdns-55.net.