Validation error: "The itemprop attribute was specified, but the element is not a property of any item"

Question

为了更好的 SEO，我需要像这样在我的页面上放置一些元数据：

<!-- Schema.org markup for Google+ -->
<meta itemprop="name" content="The Name or Title Here">
<meta itemprop="description" content="This is the page description">
<meta itemprop="image" content="http://www.example.com/image.jpg">

Here is the source.

然后我在 Markup Validation Service 上检查此代码：

<!DOCTYPE html>
<html>
<head lang="en">
  <meta itemprop="name" content="The Name or Title Here">
  <meta itemprop="description" content="This is the page description">
  <meta itemprop="image" content="http://www.example.com/image.jpg">
  <meta charset="UTF-8">
  <title>My title</title>
</head>
<body>
  My body.
</body>
</html>

抛出此错误：

Line 4, Column 57: The itemprop attribute was specified, but the element is not a property of any item.
 <meta itemprop="name" content="The Name or Title Here">
Line 5, Column 70: The itemprop attribute was specified, but the element is not a property of any item.
 <meta itemprop="description" content="This is the page description">
Line 6, Column 68: The itemprop attribute was specified, but the element is not a property of any item.
 <meta itemprop="image" content="http://www.example.com/image.jpg">

我该如何解决这个问题？

Answer 1

您应该明确提供一个 type 这些属性（name、description、image）属于。

在Schema.org里，一切都是Thing。 Thing 有许多子类型，列在 "More specific Types" 下。从那里开始，为您的内容选择最具体的类型。

例如：WebPage, Article or maybe BlogPosting.

它看起来像（这里使用 WebPage 作为示例）：

<html itemscope itemtype="http://schema.org/WebPage">

Answer 2

如果您在 header 中使用 itemprop 元标记作为站点标题、描述等。

只需在 html tag 中添加 itemscope itemtype="http://schema.org/WebPage"。

用法：

<html itemscope itemtype="http://schema.org/WebPage">

Validation error: "The itemprop attribute was specified, but the element is not a property of any item"

Validation error: "The itemprop attribute was specified, but the element is not a property of any item"

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