日本最大級のネットオークション・フリマアプリ
Yahoo!オークション (yahoo.co.jp) scores 65 out of 100 on Brand Analyzer, placing it in the Developing tier among E-commerce brands, Technology brands, in the 13th percentile of 12105 E-commerce brands.
Yahoo!オークション is an Internet auction developed by Yahoo! brand. It was founded in 1998. 誰もがお店にないものも見つけて買える、安心・安全なオークション・フリマ体験を提供する。.
| Brand Name | Yahoo!オークション |
|---|---|
| Domain | yahoo.co.jp |
| Industry | E-commerce, Technology |
| Founded | 1998 |
| Parent Company / Owner | Yahoo |
| Main Competitors | メルカリ (88/100), 楽天オークション (76/100), ラクマ, eBay (83/100), Amazon (88/100), PayPayフリマ |
Moz Domain Authority 93/100 vs category average 44 / leader 95 - a strong backlink profile, so AI systems frequently encounter mentions of the brand.
No Wikipedia presence was found - a major gap, since Wikipedia is among the most heavily weighted sources in AI training data.
The homepage meta description reads "Yahoo!オークション（旧ヤフオク!）は、お店にないものも見つかる買える 日本最大級のネットオークション・フリマアプリです。圧倒的人気のオークションに加え、フリマ出品ですぐ売れる、買える商品もたくさん！" (Meta description too short (2 words). OG description present but brief) - this is the summary AI engines are most likely to quote.
Structured data on the homepage: og:title, og:description, og:image, og:type, canonical. Adding Organization and FAQ schema would further help AI crawlers parse the brand's identity.
AI-crawler access: robots.txt present, no AI bot restrictions - robots.txt controls whether engines like GPTBot and ClaudeBot can read the site at all.
Content is JA-only, limiting citation in English-language AI answers.
Detected tech stack: Express.
Social footprint: verified profiles on X (Twitter), YouTube, Instagram, GitHub; no detected presence on Facebook, LinkedIn - consistent profiles reinforce the brand's identity across the web.
0 Reddit mentions - community discussion signals real-world reputation to AI models.
Live results from asking a general-purpose AI assistant about the brand, checked August 2026.
When asked "What is Yahoo!ショッピング?", Claude could identify the brand as of August 2026. Yahoo!ショッピング is a major Japanese e-commerce marketplace operated by LY Corporation (formerly Yahoo Japan), allowing third-party merchants to sell products directly to consumers with no listing fees for sellers. It's one of Japan's largest online shopping platforms, competing dire Best known for Being one of Japan's top e-commerce marketplaces with free store openings for merchants, integrated with PayPay and Yahoo Japan's ecosystem.
When asked "Best brands similar to Yahoo!ショッピング?", Claude would recommend Yahoo!オークション as of August 2026. It's a top-tier player in Japan's e-commerce market and would naturally come up alongside Rakuten and Amazon Japan when discussing major Japanese online shopping platforms.
Common questions people ask in Google, ChatGPT, Claude, Gemini, Perplexity, and other AI search engines.
Yahoo!オークション's main competitors in E-commerce: メルカリ (88/100), 楽天オークション (76/100), eBay (83/100), Amazon (88/100).
Sources: Brand Analyzer scan
Yahoo!オークションは、インターネットオークション形式での商品売買サービスと、フリマ形式での即時売買サービスを提供しています。幅広い商品カテゴリにわたる出品・購入が可能です。
Sources: Yahoo!オークション official site
Yahoo!オークション（旧ヤフオク!）は、Yahoo!ブランドが運営する日本最大級のインターネットオークション・フリマアプリです。1998年に開始され、店舗にない商品も見つけて購入できるオンラインマーケットプレイスとして機能しています。
Sources: Yahoo!オークション official site
Yahoo!オークション has limited AI-search visibility, scoring 42/100 on Brand Analyzer's AI visibility composite (visibility 25, trust 44, recommendation 69). This estimates how likely AI engines like ChatGPT, Claude, Gemini and Perplexity are to know, trust, and recommend the brand.
Sources: Yahoo!オークション official site
Yahoo!オークション was founded in 1998. Yahoo!オークション operates in the E-commerce category. It is analyzed by Brand Analyzer across seven brand dimensions and AI-search visibility.
Sources: Wikidata
Yahoo!オークション scores 69/100 on Brand Analyzer's AI recommendation signal, indicating it is reasonably likely to be surfaced when AI assistants like ChatGPT suggest E-commerce options. Recommendation depends on crawlability, structured data, and category authority.
Sources: Yahoo!オークション official site
Yahoo!オークション can improve AI discoverability by strengthening structured data (Organization and FAQ schema), maintaining an accurate Wikipedia/Wikidata entity, earning authoritative citations, and keeping content crawlable for AI bots. Brand Analyzer measures these as visibility, trust, and recommendation signals.
Sources: Yahoo!オークション official site
Yahoo!オークション is owned by or part of Yahoo. Yahoo!オークション operates in the E-commerce category.
Sources: Wikidata
Yahoo!オークション scores 42/100 for AI visibility - how well ChatGPT, Claude, Perplexity and Google AI Overviews can discover, identify and cite the brand.
Yahoo!オークション has a limited AI-visibility profile at 42/100 - a proxy for how readily ChatGPT, Perplexity and Google's AI Overviews can recognise and cite it. Its strongest area is recommendation likelihood (69/100) and its weakest is visibility (25/100). It benefits from a Wikidata knowledge-graph entry, a Moz Domain Authority of 93/100 and open access for AI crawlers (GPTBot, ClaudeBot, etc.). The main gaps holding it back: no clear Wikipedia entity to anchor it in LLM training data, thin schema.org structured data and no llms.txt to steer AI to its best pages. In a live check, Claude could already identify Yahoo!オークション from memory (August 2026) - a sign these signals are paying off.
The score combines seven dimensions - name quality, digital presence, visual identity, messaging clarity, trust foundation, AI discoverability, and brand authority - into a single objective benchmark.
65 in September 2026, down from 83 in August 2026.
Ranked closest to Yahoo!オークション: XLR8 Performance (65/100), Xduka (65/100), YOMI PET (65/100), Zakaz.ua (65/100).
A step up - brands to learn from: Zoologist Perfumes (71/100), Zeex (71/100).
Category leader: DHL (97/100).
Brand Analyzer is built by DataEase AI. Track your brand in ChatGPT, Gemini and Perplexity.