kodansha.co.jp
Scanned URL: https://kodansha.co.jp
62
🔍 SEO Score
8 / 13 checks passed
36
🤖 LLM Readiness
4 / 11 checks passed
36
⚡ Performance
4 / 11 checks passed
📝 Extracted Page Tags
Title Tag
講談社「おもしろくて、ためになる」を世界へ
Meta 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。
H1 Heading
コミック
Canonical URL
None found
🔍 SEO Audit
62/100❌ Title Tag
Length: 21 chars (Ideal: 30-60).
✅ Meta Description
Length: 82 chars (Ideal: 50-160).
❌ H1 Tag
Found 4 H1 tags. Exactly 1 is recommended.
❌ Canonical URL
Missing canonical tag.
✅ Open Graph Tags
Found 6 OG properties (4+ recommended).
✅ Indexability
Page allows indexing.
✅ Mobile Viewport
Viewport meta tag present.
❌ Image Alt Text
14 of 98 images missing alt.
❌ Sitemap
No sitemap found in robots.txt.
✅ Heading Hierarchy
H1 and H2 structure detected.
✅ Internal Links
Found 264 internal links.
✅ HSTS Security
HSTS header present.
✅ HTTPS
Loads securely over HTTPS.
🤖 LLMO
36/100❌ Structured Data (JSON-LD)
No JSON-LD found.
❌ Schema Entities
No schema entities.
❌ FAQ Schema
Missing FAQ schema.
❌ Contextual Summary
Description too short for AI context.
❌ E-E-A-T (Author)
No author meta or schema.
❌ Organisation Schema
Missing Organization schema.
❌ Breadcrumb Schema
Missing BreadcrumbList.
✅ AI Crawler Access
AI agents not blocked.
✅ Language Declaration
Language set to 'ja'.
✅ Semantic Structure
Uses <main> or <article>.
✅ Entity Verification Links
Social/publisher profiles linked.
⚡ Performance
36/100Network Waterfall (Total: 5186ms)
- DNS: 254ms
- Connect: 255ms
- TTFB: 640ms
- Download: 4546ms
❌ Time to First Byte (TTFB)
TTFB: 640ms (Target: < 600ms).
❌ HTML Payload Size
Raw HTML: 355.2KB (Target: < 150KB).
❌ Text Compression
No Brotli/Gzip detected.
❌ Cache Policies
Missing Cache-Control headers.
❌ CDN Usage
No CDN headers found.
✅ Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
✅ Native Lazy Loading
Images use loading='lazy'.
❌ Minified Assets
No minified assets linked.
✅ Preload / Preconnect Hints
Resource hints found.
✅ Character Set
UTF-8 declared.
🛡️ Security & Blacklist
Clean✅ Domain is clean.
⚙️ Technologies
E-Commerce
Magento
Analytics & Tracking
Google Tag Manager
Infrastructure & CDN
Nginx
📋 WHOIS
WHOIS unavailable.
🔗 DNS Records
| Type | Value |
|---|---|
| A | 13.231.99.251 |
| MX | aspmx3.googlemail.com |
| MX | alt1.aspmx.l.google.com |
| MX | alt2.aspmx.l.google.com |
| MX | aspmx.l.google.com |
| MX | aspmx2.googlemail.com |
| 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 include:aspmx.pardot.com include:spf.protection.outlook.com include:spfd.protection.outlook.com include:spf-bma.mpme.jp ~all |
| TXT | MS=085508D4C0D0A8161AFB23E97085F7098BDAA106 |
| TXT | MS=ms10087093 |
| TXT | MS=ms22176288 |
| TXT | apple-domain-verification=11w2ahT1OXVAXgtA |
| TXT | figma-domain-verification=7be03bce0220e1f36f952e70cd48a6091c0c9c7389c22e7d6c92af8b2f8aff0b-1756958901 |
| TXT | google-site-verification=fzyGqswFYTL_z4eJ_uLwdMUrVabq7WqEZBKhp5VedC0 |
| TXT | notion-domain-verification=Edk7uCcxTTXtK5r2HGJaTPCzNRDBRIm4Ev0zTCWUPvl |
| TXT | pardot884203=c9a33ee98bd2985f9ced3c383feca8b92b538a398624af9776f0a13d029b482e |
| NS | ns-274.awsdns-34.com |
| NS | ns-958.awsdns-55.net |
| NS | ns-1360.awsdns-42.org |
| NS | ns-2039.awsdns-62.co.uk |