{"rewrite":{"id":"r_09f89e1037034928e3a465eb","clusterId":"c_966e4f6bca1cef3d932c819e","slug":"chatgpt-s-co-jp-citation-rate-hits-44-8-in-optyino-ai-survey","model":"deepseek-v4-flash","headline":"ChatGPT's .co.jp Citation Rate Hits 44.8% in Optyino.ai Survey","summary":"Optyino.ai analyzed 71,041 AI responses across 585 prompts and found that .co.jp domains accounted for 35.5% of all cited URLs, behind .com at 40.2%. ChatGPT cited .co.jp at 44.8%, the highest among major models, while Google AI Overview led in .com citations at 46.7%. The top three domain attributes-.com, .co.jp, and .jp-made up 94.9% of cited URLs.","whyItMatters":"Japanese companies seeking visibility in AI-generated answers now have evidence that ChatGPT skews toward .co.jp and .jp domains, while Google AI Overview favors .com, meaning GEO strategies must be tailored to each model's citation patterns.","webCardHtml":"\u003cp\u003eOptyino.ai, a GEO visualization platform, analyzed 585 prompts across industries from finance to Web3.0, collecting 71,041 AI responses between August 2025 and June 2026. The 134,174 cited URLs were then broken down by domain attribute. The overall leader was .com at 40.2%, but .co.jp followed at 35.5% and .jp at 19.2%. The real story is in the model-by-model difference: ChatGPT cited .co.jp at 44.8% and .jp at 23.9%, for a combined 68.7% Japanese-domain rate. Google AI Overview, by contrast, cited .com at 46.7% and .co.jp at only 28.7%. Claude sat in the middle with a .co.jp rate of 37.1%.\u003c/p\u003e","blueskyPost":"New Optyino.ai survey of 71,041 AI responses shows ChatGPT cites .co.jp domains at 44.8%, far above the overall average of 35.5%. Google AI Overview leads on .com at 46.7%. Japanese companies need model-specific GEO strategies.","twitterPost":"Optyino.ai analyzed 71,041 AI responses: .co.jp domains were cited at 35.5% overall, but ChatGPT's rate was 44.8%. Google AI Overview favored .com at 46.7%. The takeaway: GEO tactics should differ by model.","threadsPost":null,"newsletterBlurb":"Optyino.ai released a cross-analysis of 71,041 AI responses from ChatGPT, Gemini, Claude, and Google AI Overview, breaking down citation rates by domain attribute. .com led at 40.2%, but .co.jp and .jp combined for 54.7%. ChatGPT showed the strongest preference for Japanese domains, while Google AI Overview skewed toward .com.","attributionJson":"[{\"source\":\"ASCII.jp\",\"url\":\"https://ascii.jp/elem/000/004/418/4418298/?rss\",\"title\":\"Are .co.jp domains more likely to be cited by AI? Optyino.ai analyzes 71,041 AI responses, ChatGPT tops with 44.8% .co.jp citation rate\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4331,"outputTokens":1551,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1783654768,"createdAt":"2026-07-10T03:36:50.000Z","publishedAt":"2026-07-10T03:37:28.000Z","updatedAt":"2026-07-10T03:36:50.000Z"},"cluster":{"id":"c_966e4f6bca1cef3d932c819e","canonicalTitle":"AIに引用されやすいドメインは「.co.jp」？Optyino.aiがAI回答71,041件を分析、ChatGPTは.co.jp引用率44.8%でトップ","representativeArticleId":"a_8ac725a569d70cc8785069a2","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-07-10T01:30:38.000Z","lastSeenAt":"2026-07-10T01:30:38.000Z","updatedAt":"2026-07-10T03:37:29.000Z"},"attribution":[{"source":"ASCII.jp","url":"https://ascii.jp/elem/000/004/418/4418298/?rss","title":"AIに引用されやすいドメインは「.co.jp」？Optyino.aiがAI回答71,041件を分析、ChatGPTは.co.jp引用率44.8%でトップ"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":null}