通过@id 的架构链接导致 "Unnamed item" 错误

Question

我正在尝试将 Schema 结构化数据添加到我的网站。

我的应用有一个页面：

{
  "@context": "https://schema.org",
  "@type": "MobileApplication",
  "@id": "https://example.com/app",
  "name": "APP",
  "applicationCategory": "HealthApplication",
  "operatingSystem": ["iOS", "Android"],
  "offers": {
    "@type": "Offer",
    "price": "0",
    "priceCurrency": "USD"
  },
  "aggregateRating": {
    "@type": "AggregateRating",
    "ratingValue": "5",
    "ratingCount": "100"
  }
}

...我公司的另一个：

{
  "@context": "https://schema.org",
  "@type": "Corporation",
  "@id": "https://example.com/about",
  "name": "COMPANY",
  "owns": {
    "@type": "MobileApplication",
    "@id": "https://example.com/app"
  }
}

当我用https://search.google.com/test/rich-results测试上面的内容时，应用页面没问题，但是公司页面出现以下错误：

我是不是误解了 @id 的工作原理？我以为 Google 然后会查找链接的资源并获取所有缺少的属性。

Answer 1

仅使用 @id 关键字引用它们，省略 @type 关键字：

{
  "@context": "https://schema.org",
  "@type": "Corporation",
  "@id": "https://example.com/about",
  "name": "COMPANY",
  "owns": {
    "@id": "https://example.com/app"
  }
}

但是，Google 似乎并没有以链接互联网上片段的方式使用 @id 关键字，尤其是那些位于不同页面或网站上的片段，或至少在 SERP

中没有任何好处

此外，公司标记可以改进：属性 owns expects a Product type, and MobileApplication is a subtype of CreativeWork, so it's probably not appropriate, however, there seems to be no straightforward property that connects Organization and CreativeWork，虽然 Google 似乎没有抱怨它

通过@id 的架构链接导致 "Unnamed item" 错误

Schema linking via @id results in "Unnamed item" error

schema

json-ld

google-rich-snippets