TAJONG (大忠工業股份有限公司 / OYAMA)
(https://oyama.com) 📸 Data Snapshot: May 31, 2026Inspect the JSON-LD. Is there an Organization or Person schema, and does it carry sameAs links to real external profiles (LinkedIn, socials)? Missing schema or no identity declaration signals an anonymous entity.
There is a notable authority gap regarding the founder, Mr. Oyama Wang; while his name is a brand pillar, there is no structured Person schema or sameAs links to verify his industry standing. The technical SEO setup is also weak, featuring an empty H1 tag on all evaluated pages and missing meta descriptions, which contradicts the claim of using ‘update production technology.’
The company claims to have developed the first OYAMA folding bike in 1988 and to own 200 patents, yet no list of these innovations is provided to the user. While the 2026 exhibition dates are highly specific and current, the broader claims of ‘satisfying service’ are not supported by case studies or named client testimonials. The site functions more as a static brochure than a transparent manufacturing portal.
Identity & Authority is read from the structured data first: whether the site declares who it is in machine-readable schema, with verifiable identity links. Below is the schema captured per page, then the external proof links that support (or fail to support) that identity.
🔗 Identity & Technical Layer — schema JSON-LD: identity chains, entity gaps
Homepage schema
[
{
"@context": "https://schema.org/",
"@type": "LocalBusiness",
"name": "大忠工業股份有限公司",
"url": "https://www.oyama.com",
"image": "https://static.wixstatic.com/media/3cce42_4f361fe083fa44b087cc20f4322ad426~mv2.jpg",
"address": {
"@type": "PostalAddress",
"addressCountry": "TW",
"addressLocality": "Yongkang District",
"postalCode": "710",
"streetAddress": "556 Zhongzheng Road"
},
"telephone": "06-2533696"
},
{
"@context": "https://schema.org/",
"@type": "WebSite",
"name": "TAJONG",
"url": "https://www.oyama.com"
}
]
🛡️ Trust Signals — external proof links that back the declared identity
| Page | Reviews | Proof links |
|---|---|---|
| / (home) | 28 | 0 |
| /ebike/ | 27 | 0 |
| /mountainbike/ | 27 | 0 |
| /roadbike/ | 27 | 0 |
This page presents a snapshot of public data from TAJONG (大忠工業股份有限公司 / OYAMA), captured on May 31, 2026, to show how machine logic reads Identity & Authority signals into an AI reputation evaluation.
Purpose: This data is presented under “Fair Use” for the purpose of independent signal analysis, allowing readers to see the raw signals behind the reputation score.
Notice to TAJONG (大忠工業股份有限公司 / OYAMA): This analysis is part of a non-adversarial audit conducted by 1 Euro SEO. The results are intended as professional feedback to help improve any website’s machine-readability and authority signals. The evaluation is free, and any company can request a fresh audit at any time.
Any company can use the insights for free and improve its voice. When a company has updated its content, it can always submit a new audit request, which will be reflected in a new current score.
To all users: You are encouraged to visit the live site at https://oyama.com to view the most current version of its content and see directly what this company is about and what it offers.