Note: You are viewing the development version of Schema.org. See how we work for more details.

additionalType

A Schema.org Property
Thing > Property :: additionalType
An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. Typically the value is a URI-identified RDF class, and in this case corresponds to the use of rdf:type in RDF. Text values can be used sparingly, for cases where useful information can be added without their being an appropriate schema to reference. In the case of text values, the class label should follow the schema.org style guide.

Subproperty of:

Values expected to be one of these types

Used on these types

Examples

Example 1
Copied
No Markup Microdata RDFa JSON-LD Structure
Example notes or example HTML without markup.
  1. <!-- Uses both the "Book" and "Product" item types to support Offer relationships -->

  3.  <div>
  4.    <h3>Le concerto</h3>
  5.    <div>
  6.        Bibliographic Details
  7.        <table>
  8.          <tr>
  9.            <th>Main Author: </th>
  10.            <td>Ferchault, Guy</td>
  11.          </tr>
  12.        </table>
  13.    </div>
  14.  </div>

  16.  <div>
  17.      Holdings details from Anytown City Library
  18.      <table>
  19.        <!-- Example of a copy available for loan -->
  20.        <tr>
  21.          <th>Copy </th>
  22.          <td>Available
  23.            <div>Barcode: <span>CONC91000937</span></div>
  24.            <div>Call number: <span>780 R2</span></div>
  25.            <div>Library: <span>Anytown City Library</span></div>
  26.          </td>
  27.        </tr>
  28.      <table>
  29.  </div>
Example encoded as Microdata embedded in HTML.
  1.  <!-- Uses both the "Book" and "Product" item types to support Offer relationships -->

  3.  <div itemscope itemtype="https://schema.org/Book" itemid="#record">
  4.    <link itemprop="additionalType" href="https://schema.org/Product"/>
  5.    <h3 itemprop="name">Le concerto</h3>
  6.    <div>
  7.        Bibliographic Details
  8.        <table>
  9.          <tr>
  10.            <th>Main Author: </th>
  11.            <td itemprop="author">Ferchault, Guy</td>
  12.          </tr>
  13.        </table>
  14.    </div>
  15.  </div>

  17.  <div>
  18.      Holdings details from Anytown City Library
  19.      <table>
  20.        <!-- Example of a copy available for loan -->
  21.        <tr itemscope itemtype="https://schema.org/Offer">
  22.          <th>Copy </th>
  23.          <td>Available
  24.            <link itemprop="availability" href="https://schema.org/InStock">
  25.            <div>Barcode: <span itemprop="serialNumber">CONC91000937</span></div>
  26.            <div>Call number: <span itemprop="sku">780 R2</span></div>
  27.            <div>Library: <span itemprop="offeredBy" itemscope itemtype="https://schema.org/Library" itemid="http://library.anytown.gov.uk" >Anytown City Library</span></div>
  28.            <link itemprop="businessFunction" href="http://purl.org/goodrelations/v1#LeaseOut">
  29.            <link itemprop="itemOffered" href="#record">
  30.          </td>
  31.        </tr>
  32.      </table>
  33.  </div>
Example encoded as RDFa embedded in HTML.
  1.  <!-- Uses both the "Book" and "Product" item types to support Offer relationships -->
  2. <div vocab="https://schema.org/" resource="#record" typeof="Book Product">
  3.     <h3 property="name">
  4.         Le concerto
  5.     </h3>
  6.     <div>
  7.         Bibliographic Details
  8.         <table>
  9.             <tr>
  10.                 <th>
  11.                     Main Author:
  12.                 </th>
  13.                 <td property="author">
  14.                     Ferchault, Guy
  15.                 </td>
  16.             </tr>
  17.         </table>
  18.     </div>
  19. </div>
  20. <div>
  21.     Holdings details from Anytown City Library
  22.     <table vocab="https://schema.org/">
  23.         <!-- Example of a copy available for loan -->
  24.         <tr typeof="Offer">
  25.             <th>
  26.                 Copy
  27.             </th>
  28.             <td>
  29.                 Available
  30.                 <div>
  31.                     Barcode: <span property="serialNumber">CONC91000937</span>
  32.                 </div>
  33.                 <div>
  34.                     Call number: <span property="sku">780 R2</span>
  35.                 </div>
  36.                 <div>
  37.                     Library: <span property="offeredBy" typeof="Library" resource="http://library.anytown.gov.uk">Anytown City Library</span>
  38.                 </div>
  39.             </td>
  40.         </tr>
  41.     </table>
  42. </div>
Example encoded as JSON-LD in a HTML script tag.
  1. <script type="application/ld+json">
  2. {
  3.   "@context":  "https://schema.org/",
  4.   "@id": "#record",
  5.   "@type": "Book",
  6.   "additionalType": "Product",
  7.   "name": "Le concerto",
  8.   "author": "Ferchault, Guy",
  9.   "offers":{
  10.       "@type": "Offer",
  11.       "availability": "https://schema.org/InStock",
  12.       "serialNumber": "CONC91000937",
  13.       "sku": "780 R2",
  14.       "offeredBy": {
  15.           "@type": "Library",
  16.           "@id": "http://library.anytown.gov.uk",
  17.           "name": "Anytown City Library"
  18.       },
  19.       "businessFunction": "http://purl.org/goodrelations/v1#LeaseOut",
  20.       "itemOffered": "#record"
  21.     }
  22. }
  23. </script>
Structured representation of the JSON-LD example.