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4gamer.net

4Gamer.net ― 日本最大級の総合ゲーム情報サイト。最新ゲームのニュース,レビューはここで!

AI Agentic Readiness

7 / 28
agentic checks passed
38% readiness - how well this site can be read, trusted and transacted with by AI agents
Last checked

4gamer.net is live and passes 7 of 28 agentic-readiness checks (38%). It runs on Apache over HTTPS.

For AI agents, 4gamer.net's strongest signals are tidy, crawlable markup, fully indexable pages, a visually stable layout, and a clear canonical URL. 2 render-blocking script(s) in <head>.

Its main gaps are thin semantic structure, text that is hard for agents to extract, few clear definitions, and no self-contained answer passages. The weakest area is Structured data; addressing it first would raise this score the most.

Agent interaction
✗Semantic HTML5 & AccessibilityNo <main> or <article> landmark anywhere in the sample - AI browser agents cannot distinguish main content from navigation and chrome
✓Clean, Crawlable HTMLPage has title and meta description
✗Extraction Friction ScoreAverage sentence length: 64.4 words - too long for AI snippets
✓Indexability & Snippet EligibilityPages are indexable and snippet-eligible - the precondition for Google AI features is met
✓Layout Stability & Responsiveness187/324 images lack explicit width/height - the most common cause of layout shift (CLS)
✓Canonical URL StrategySingle canonical tag present (no duplicates)
~Page Speed: Page SizeApproximately 1834 DOM nodes - consider simplifying
✓Page Speed: Load Blockers2 render-blocking script(s) in <head>
Machine extraction
~Table & List ExtractabilityNo HTML tables found across homepage
✓Sentence AtomicityAverage 67% atomic sentences across 1 pages (target 40%+)
~Entity DensityAverage entity density 10.3% across 1 pages (target >15%)
✗Definition PatternsNo definition patterns found
✗Answer Capsule Pattern0/34 H2 sections have 15-30 word self-contained capsules (0%)
Structured data
✗Schema.org Structured DataNo JSON-LD structured data found across homepage
✗Schema Coverage & DepthNo JSON-LD found - cannot assess schema coverage
✗Speakable SchemaNo JSON-LD found across homepage - cannot assess speakable schema
AI discovery
✗llms.txt FileNo llms.txt file found at https://4gamer.net/llms.txt (connection failed)
✗robots.txt for AI CrawlersNo explicit AI crawler rules in robots.txt
✗Sitemap CompletenessNo sitemap.xml found
?RSS/Atom FeedNot assessed
✗Internationalization SignalsNo hreflang alternate links found
?Content Licensing & AI PermissionsNot assessed
Trust & transparency
✗Entity Authority & E-E-A-TNo Organization schema to reinforce entity identity
✗Creator TransparencyCreator visibility is weak on content-like pages
~Methodology TransparencyLittle content-production or review transparency is visible
~AI Assistance DisclosureNo AI-assistance disclosure found on sampled pages (neutral - the engine cannot tell whether AI was used)
✗Visible Date SignalNo visible date signals found across homepage (no <time> elements, no JSON-LD dates, no article meta dates)
✓Title & Meta QualityTitles are present, unique, and well-sized, and pages carry meta descriptions
✗Content Freshness SignalsNo JSON-LD date properties (datePublished/dateModified) found across homepage
✗Author & Expert SchemaNo Person schema found across homepage

Every check is a verifiable fact about 4gamer.net's live pages. Scoring follows Google Lighthouse agentic-browsing: a fraction of concrete checks, not an invented 0-100.

How to improve for AI agents

The highest-impact changes to make 4gamer.net more agent-ready, in priority order.

1 Add structured tables and lists high impact low effort
Present 4gamer.net's comparison and spec data as real HTML tables and lists agents can extract.
2 Strengthen entity authority (NAP) critical impact medium effort
Make 4gamer.net's name, address and phone consistent and add Organization schema to anchor its identity.
3 Add content freshness signals critical impact medium effort
Refresh and re-date 4gamer.net's key pages so agents see it as maintained.
4 Add JSON-LD structured data critical impact medium effort
Mark up 4gamer.net's homepage with Schema.org JSON-LD (Organization, WebSite) an agent can read as facts.

Historical snapshot

From MarkosWeb's own measurement archive, recorded at an earlier check - data no other directory holds.

Estimated domain worth$1,203,005
Health score78.45%
Indexed pages276,352
Backlinks on record2,107,686
Homepage links986 internal · 98 external
Homepage snapshots37
Web server thenApache
Hosting thenYahoo Japan Corporation
RegistrarGMO INTERNET, INC. DBA ONAMAE.COM
Name serversns01.idc.jp, ns02.idc.jp, ns03.idc.jp
Domain age at last check20 years and 28 days

Trust & legitimacy signals

✓Currently activeyes (HTTP 200)
✓Secure (HTTPS)yes
✓Identifiable technologyApache

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4gamer.net is 38% AI-Ready - MarkosWeb

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Agentic readiness for 4gamer.net last checked . Machine-readable: JSON. Method: methodology.

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