伝統の味、カステラ一筋
福砂屋 (Fukusaya) (fukusaya.co.jp) scores 57 out of 100 on Brand Analyzer, placing it in the Developing tier among Food & Beverage brands, E-commerce brands, in the 5th percentile of 14218 Food & Beverage brands.
福砂屋 (Fukusaya) is a 長崎の伝統製法を守り、最高品質のカステラを届ける。. It was founded in 1624. It is headquartered in Nagasaki. 長崎の伝統製法を守り、最高品質のカステラを届ける。.
| Brand Name | 福砂屋 (Fukusaya) |
|---|---|
| Domain | fukusaya.co.jp |
| Industry | Food & Beverage, E-commerce |
| Founded | 1624 |
| Headquarters | Nagasaki |
| Main Competitors | 文明堂 (59/100), 松翁軒 (71/100), 長崎堂 (65/100), 岩永梅寿軒 (50/100) |
Moz Domain Authority 40/100 vs category average 42 / leader 95 - limited third-party links, so AI systems rarely encounter mentions of the brand.
Ranked #535,830 on the Tranco list of most-visited sites - modest traffic makes the brand easy for AI models to overlook.
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 "長崎の伝統製法を守り、最高品質のカステラを届ける。" (No meta description) - this is the summary AI engines are most likely to quote.
Structured data on the homepage: No structured data or Open Graph tags detected. Adding Organization and FAQ schema would further help AI crawlers parse the brand's identity.
AI-crawler access: No robots.txt found (default: all bots allowed, but explicit file preferred) - robots.txt controls whether engines like GPTBot and ClaudeBot can read the site at all.
Detected tech stack: Apache.
Social footprint: verified profiles on Instagram, X (Twitter), Facebook; no detected presence on LinkedIn, YouTube, GitHub - 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 November 2026.
When asked "What is 福砂屋 (Fukusaya)?", Claude could identify the brand as of November 2026. Fukusaya is a long-established Nagasaki confectionery maker founded in 1624, famous for its traditional Japanese castella (kasutera) sponge cake made with a Portuguese-influenced recipe passed down for centuries. Best known for Being one of Japan's oldest and most prestigious castella cake makers, especially its signature honey-rich kasutera.
When asked "Best brands similar to 福砂屋 (Fukusaya)?", Claude would recommend 福砂屋 (Fukusaya) as of November 2026. It's one of the top historic names in castella, so it would naturally come up alongside brands like Bunmeido when discussing the best Japanese castella makers.
Common questions people ask in Google, ChatGPT, Claude, Gemini, Perplexity, and other AI search engines.
福砂屋 (Fukusaya)'s main competitors in Food & Beverage: 文明堂 (59/100), 松翁軒 (71/100), 長崎堂 (65/100), 岩永梅寿軒 (50/100).
Sources: Brand Analyzer scan
福砂屋は、1624年に長崎で創業したカステラ専門の老舗菓子ブランドである。江戸時代から続く伝統製法を守り、厳選素材を用いた高品質なカステラを製造・販売している。長崎カステラの代表的なブランドの一つとして位置付けられ、伝統と品質を重視する高級菓子ブランドとして知られる。
Sources: 福砂屋 (Fukusaya) official site
福砂屋 (Fukusaya) has limited AI-search visibility, scoring 29/100 on Brand Analyzer's AI visibility composite (visibility 28, trust 26, recommendation 35). This estimates how likely AI engines like ChatGPT, Claude, Gemini and Perplexity are to know, trust, and recommend the brand.
Sources: 福砂屋 (Fukusaya) official site
福砂屋 (Fukusaya) was founded in 1624. 福砂屋 (Fukusaya) operates in the Food & Beverage category. It is analyzed by Brand Analyzer across seven brand dimensions and AI-search visibility.
Sources: Wikidata
福砂屋 (Fukusaya) is headquartered in Nagasaki. 福砂屋 (Fukusaya) operates in the Food & Beverage category.
Sources: Wikidata
福砂屋は、長崎の伝統製法に基づいてカステラを製造・販売する菓子メーカーである。厳選された素材を使用し、江戸時代から受け継がれる製法を守りながら高品質なカステラを提供している。実店舗販売に加え、ECサイトを通じたオンライン販売も行っている。
Sources: 福砂屋 (Fukusaya) official site
福砂屋 (Fukusaya) scores 35/100 on Brand Analyzer's AI recommendation signal, indicating it is less likely to be surfaced when AI assistants like ChatGPT suggest Food & Beverage options. Recommendation depends on crawlability, structured data, and category authority.
Sources: 福砂屋 (Fukusaya) official site
福砂屋は、長崎の伝統製法で作られたカステラを主力商品として提供している。厳選素材を用いた高品質なカステラが中心で、贈答用としても販売されている。販売はECサイトを通じたオンライン購入にも対応している。
Sources: 福砂屋 (Fukusaya) official site
福砂屋 (Fukusaya) 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: 福砂屋 (Fukusaya) official site
福砂屋が評価される理由は、江戸時代から続く伝統製法と厳選素材による独自の味わいにある。長崎カステラの老舗として、長年にわたり品質を追求してきたことが、伝統や品質を重視する消費者層からの支持につながっている。特に贈答品としての需要が高いとされる。
Sources: 福砂屋 (Fukusaya) official site
福砂屋の主な利用者は、贈答品や上質な和菓子を求める大人の消費者であり、特に伝統や品質を重視する層とされる。長崎カステラという歴史ある銘菓を選ぶことから、贈り物や特別な機会での利用が多いと考えられる。
Sources: 福砂屋 (Fukusaya) official site
福砂屋 (Fukusaya) scores 29/100 for AI visibility - how well ChatGPT, Claude, Perplexity and Google AI Overviews can discover, identify and cite the brand.
福砂屋 (Fukusaya) has a weak AI-visibility profile at 29/100 - a proxy for how readily ChatGPT, Perplexity and Google's AI Overviews can recognise and cite it. Its strongest area is recommendation likelihood (35/100) and its weakest is trust (26/100). It benefits from a Wikidata knowledge-graph entry, a global traffic rank of #535,830 (Tranco) and a Moz Domain Authority of 40/100. 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 福砂屋 (Fukusaya) from memory (November 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.
Ranked closest to 福砂屋 (Fukusaya): Fitness Meal Prep (57/100), Farm Fresh To You (57/100), Gamle danske opskrifter (57/100), Gamle opskrifter (57/100).
A step up - brands to learn from: Ziemann Holvrieka (71/100), Zaxby's (71/100).
Category leader: Target (97/100).
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