Thing > Intangible > Rating > AggregateRating

The average rating based on multiple ratings or reviews.

Usage: Between 500,000 and 1,000,000 domains
[more...]
PropertyExpected TypeDescription
Properties from AggregateRating
itemReviewed Thing The item that is being reviewed/rated.
ratingCount Integer The count of total number of ratings.
reviewCount Integer The count of total number of reviews.
Properties from Rating
bestRating Text  or
Number 		The highest value allowed in this rating system. If bestRating is omitted, 5 is assumed.
ratingValue Text The rating for the content.
worstRating Text  or
Number 		The lowest value allowed in this rating system. If worstRating is omitted, 1 is assumed.
Properties from Thing
additionalType URL 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. In RDFa syntax, it is better to use the native RDFa syntax - the 'typeof' attribute - for multiple types. Schema.org tools may have only weaker understanding of extra types, in particular those defined externally.
alternateName Text An alias for the item.
description Text A short description of the item.
image URL  or
ImageObject 		An image of the item. This can be a URL or a fully described ImageObject.
mainEntityOfPage CreativeWork Indicates a page (or other CreativeWork) for which this thing is the main entity being described.

Many (but not all) pages have a fairly clear primary topic, some entity or thing that the page describes. For example a restaurant's home page might be primarily about that Restaurant, or an event listing page might represent a single event. The mainEntity and mainEntityOfPage properties allow you to explicitly express the relationship between the page and the primary entity.

Related properties include sameAs, about, and url.

The sameAs and url properties are both similar to mainEntityOfPage. The url property should be reserved to refer to more official or authoritative web pages, such as the item’s official website. The sameAs property also relates a thing to a page that indirectly identifies it. Whereas sameAs emphasises well known pages, the mainEntityOfPage property serves more to clarify which of several entities is the main one for that page.

mainEntityOfPage can be used for any page, including those not recognized as authoritative for that entity. For example, for a product, sameAs might refer to a page on the manufacturer’s official site with specs for the product, while mainEntityOfPage might be used on pages within various retailers’ sites giving details for the same product.

about is similar to mainEntity, with two key differences. First, about can refer to multiple entities/topics, while mainEntity should be used for only the primary one. Second, some pages have a primary entity that itself describes some other entity. For example, one web page may display a news article about a particular person. Another page may display a product review for a particular product. In these cases, mainEntity for the pages should refer to the news article or review, respectively, while about would more properly refer to the person or product.
Inverse property: mainEntity.
name Text The name of the item.
potentialAction Action Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
sameAs URL URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Freebase page, or official website.
url URL URL of the item.


Instances of AggregateRating may appear as values for the following properties
PropertyOn TypesDescription
aggregateRating Service  or
Organization  or
Offer  or
Event  or
Product  or
Brand  or
Place  or
CreativeWork 		The overall rating, based on a collection of reviews or ratings, of the item.


Examples

Without Markup Microdata RDFa JSON-LD 
GreatFood
4 stars - based on 250 reviews
1901 Lemur Ave
Sunnyvale, CA 94086
(408) 714-1489
<a href="http://www.greatfood.com">www.greatfood.com</a>
Hours:
Mon-Sat 11am - 2:30pm
Mon-Thur 5pm - 9:30pm
Fri-Sat 5pm - 10pm
Categories: Middle Eastern, Mediterranean
Price Range: $$
Takes Reservations: Yes

<div itemscope itemtype="http://schema.org/Restaurant">
  <span itemprop="name">GreatFood</span>
  <div itemprop="aggregateRating" itemscope itemtype="http://schema.org/AggregateRating">
    <span itemprop="ratingValue">4</span> stars -
    based on <span itemprop="reviewCount">250</span> reviews
  </div>
  <div itemprop="address" itemscope itemtype="http://schema.org/PostalAddress">
    <span itemprop="streetAddress">1901 Lemur Ave</span>
    <span itemprop="addressLocality">Sunnyvale</span>,
    <span itemprop="addressRegion">CA</span> <span itemprop="postalCode">94086</span>
  </div>
  <span itemprop="telephone">(408) 714-1489</span>
  <a itemprop="url" href="http://www.dishdash.com">www.greatfood.com</a>
  Hours:
  <meta itemprop="openingHours" content="Mo-Sa 11:00-14:30">Mon-Sat 11am - 2:30pm
  <meta itemprop="openingHours" content="Mo-Th 17:00-21:30">Mon-Thu 5pm - 9:30pm
  <meta itemprop="openingHours" content="Fr-Sa 17:00-22:00">Fri-Sat 5pm - 10:00pm
  Categories:
  <span itemprop="servesCuisine">
    Middle Eastern
  </span>,
  <span itemprop="servesCuisine">
    Mediterranean
  </span>
  Price Range: <span itemprop="priceRange">$$</span>
  Takes Reservations: Yes
</div>

<div vocab="http://schema.org/" typeof="Restaurant">
  <span property="name">GreatFood</span>
  <div property="aggregateRating"  typeof="AggregateRating">
    <span property="ratingValue">4</span> stars -
    based on <span property="reviewCount">250</span> reviews
  </div>
  <div property="address"  typeof="PostalAddress">
    <span property="streetAddress">1901 Lemur Ave</span>
    <span property="addressLocality">Sunnyvale</span>,
    <span property="addressRegion">CA</span> <span property="postalCode">94086</span>
  </div>
  <span property="telephone">(408) 714-1489</span>
  <a property="url" href="http://www.dishdash.com">www.greatfood.com</a>
  Hours:
  <meta property="openingHours" content="Mo-Sa 11:00-14:30">Mon-Sat 11am - 2:30pm
  <meta property="openingHours" content="Mo-Th 17:00-21:30">Mon-Thu 5pm - 9:30pm
  <meta property="openingHours" content="Fr-Sa 17:00-22:00">Fri-Sat 5pm - 10:00pm
  Categories:
  <span property="servesCuisine">
    Middle Eastern
  </span>,
  <span property="servesCuisine">
    Mediterranean
  </span>
  Price Range: <span property="priceRange">$$</span>
  Takes Reservations: Yes
</div>

<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "Restaurant",
  "address": {
    "@type": "PostalAddress",
    "addressLocality": "Sunnyvale",
    "addressRegion": "CA",
    "postalCode": "94086",
    "streetAddress": "1901 Lemur Ave"
  },
  "aggregateRating": {
    "@type": "AggregateRating",
    "ratingValue": "4",
    "reviewCount": "250"
  },
  "name": "GreatFood",
  "openingHours": [
    "Mo-Sa 11:00-14:30",
    "Mo-Th 17:00-21:30",
    "Fr-Sa 17:00-22:00"
  ],
  "priceRange": "$$",
  "servesCuisine": [
    "Middle Eastern",
    "Mediterranean"
  ],
  "telephone": "(408) 714-1489",
  "url": "http://www.dishdash.com"
}
</script>
Without Markup Microdata RDFa JSON-LD 
Kenmore White 17" Microwave
<img src="kenmore-microwave-17in.jpg" alt='Kenmore 17" Microwave' />
Rated 3.5/5 based on 11 customer reviews
$55.00
In stock
Product description:
0.7 cubic feet countertop microwave. Has six preset cooking categories and
 convenience features like Add-A-Minute and Child Lock.
Customer reviews:
Not a happy camper - by Ellie, April 1, 2011
1/5 stars
The lamp burned out and now I have to replace it.
 Value purchase - by Lucas, March 25, 2011
4/5 stars
Great microwave for the price. It is small and fits in my apartment.
...

<div itemscope itemtype="http://schema.org/Product">
  <span itemprop="name">Kenmore White 17" Microwave</span>
  <img src="kenmore-microwave-17in.jpg" alt='Kenmore 17" Microwave' />
  <div itemprop="aggregateRating"
    itemscope itemtype="http://schema.org/AggregateRating">
   Rated <span itemprop="ratingValue">3.5</span>/5
   based on <span itemprop="reviewCount">11</span> customer reviews
  </div>
  <div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
    <!--price is 1000, a number, with locale-specific thousands separator
    and decimal mark, and the $ character is marked up with the
    machine-readable code "USD" -->
    <span itemprop="priceCurrency" content="USD">$</span><span
          itemprop="price" content="1000.00">1,000.00</span>
    <link itemprop="availability" href="http://schema.org/InStock" />In stock
  </div>
  Product description:
  <span itemprop="description">0.7 cubic feet countertop microwave.
  Has six preset cooking categories and convenience features like
  Add-A-Minute and Child Lock.</span>
  Customer reviews:
  <div itemprop="review" itemscope itemtype="http://schema.org/Review">
    <span itemprop="name">Not a happy camper</span> -
    by <span itemprop="author">Ellie</span>,
    <meta itemprop="datePublished" content="2011-04-01">April 1, 2011
    <div itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
      <meta itemprop="worstRating" content = "1">
      <span itemprop="ratingValue">1</span>/
      <span itemprop="bestRating">5</span>stars
    </div>
    <span itemprop="description">The lamp burned out and now I have to replace
    it. </span>
  </div>
  <div itemprop="review" itemscope itemtype="http://schema.org/Review">
    <span itemprop="name">Value purchase</span> -
    by <span itemprop="author">Lucas</span>,
    <meta itemprop="datePublished" content="2011-03-25">March 25, 2011
    <div itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
      <meta itemprop="worstRating" content = "1"/>
      <span itemprop="ratingValue">4</span>/
      <span itemprop="bestRating">5</span>stars
    </div>
    <span itemprop="description">Great microwave for the price. It is small and
    fits in my apartment.</span>
  </div>
  ...
</div>

<div vocab="http://schema.org/" typeof="Product">
  <span property="name">Kenmore White 17" Microwave</span>
  <img src="kenmore-microwave-17in.jpg" alt='Kenmore 17" Microwave' />
  <div property="aggregateRating"
     typeof="AggregateRating">
   Rated <span property="ratingValue">3.5</span>/5
   based on <span property="reviewCount">11</span> customer reviews
  </div>
  <div property="offers"  typeof="Offer">
    <!--price is 1000, a number, with locale-specific thousands separator
        and decimal mark, and the $ character is marked up with the
        machine-readable code "USD" -->
    <span property="priceCurrency" content="USD">$</span><span
      property="price" content="1000.00">1,000.00</span>
    <link property="availability" href="http://schema.org/InStock" />In stock
  </div>
  Product description:
  <span property="description">0.7 cubic feet countertop microwave.
  Has six preset cooking categories and convenience features like
  Add-A-Minute and Child Lock.</span>
  Customer reviews:
  <div property="review"  typeof="Review">
    <span property="name">Not a happy camper</span> -
    by <span property="author">Ellie</span>,
    <meta property="datePublished" content="2011-04-01">April 1, 2011
    <div property="reviewRating"  typeof="Rating">
      <meta property="worstRating" content = "1">
      <span property="ratingValue">1</span>/
      <span property="bestRating">5</span>stars
    </div>
    <span property="description">The lamp burned out and now I have to replace
    it. </span>
  </div>
  <div property="review"  typeof="Review">
    <span property="name">Value purchase</span> -
    by <span property="author">Lucas</span>,
    <meta property="datePublished" content="2011-03-25">March 25, 2011
    <div property="reviewRating"  typeof="Rating">
      <meta property="worstRating" content = "1"/>
      <span property="ratingValue">4</span>/
      <span property="bestRating">5</span>stars
    </div>
    <span property="description">Great microwave for the price. It is small and
    fits in my apartment.</span>
  </div>
  ...
</div>

<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "Product",
  "aggregateRating": {
    "@type": "AggregateRating",
    "ratingValue": "3.5",
    "reviewCount": "11"
  },
  "description": "0.7 cubic feet countertop microwave. Has six preset cooking categories and convenience features like Add-A-Minute and Child Lock.",
  "name": "Kenmore White 17\" Microwave",
  "offers": {
    "@type": "Offer",
    "availability": "http://schema.org/InStock",
    "price": "55.00",
    "priceCurrency": "USD"
  },
  "review": [
    {
      "@type": "Review",
      "author": "Ellie",
      "datePublished": "2011-04-01",
      "description": "The lamp burned out and now I have to replace it.",
      "name": "Not a happy camper",
      "reviewRating": {
        "@type": "Rating",
        "bestRating": "5",
        "ratingValue": "1",
        "worstRating": "1"
      }
    },
    {
      "@type": "Review",
      "author": "Lucas",
      "datePublished": "2011-03-25",
      "description": "Great microwave for the price. It is small and fits in my apartment.",
      "name": "Value purchase",
      "reviewRating": {
        "@type": "Rating",
        "bestRating": "5",
        "ratingValue": "4",
        "worstRating": "1"
      }
    }
  ]
}
</script>
Without Markup Microdata RDFa JSON-LD 
<img src="dell-30in-lcd.jpg" alt="A Dell UltraSharp monitor" />
Dell UltraSharp 30" LCD Monitor
87 out of 100 based on 24 user ratings
$1250 to $1495 from 8 sellers
Sellers:
<a href="save-a-lot-monitors.com/dell-30.html">
  Save A Lot Monitors - $1250</a>
<a href="jondoe-gadgets.com/dell-30.html">
  Jon Doe's Gadgets - $1350</a>
...

<div itemscope itemtype="http://schema.org/Product">
  <img itemprop="image" src="dell-30in-lcd.jpg" alt="A Dell UltraSharp monitor"/>
  <span itemprop="name">Dell UltraSharp 30" LCD Monitor</span>
  <div itemprop="aggregateRating"
    itemscope itemtype="http://schema.org/AggregateRating">
    <span itemprop="ratingValue">87</span>
    out of <span itemprop="bestRating">100</span>
    based on <span itemprop="ratingCount">24</span> user ratings
  </div>
  <div itemprop="offers" itemscope itemtype="http://schema.org/AggregateOffer">
    <span itemprop="lowPrice">$1250</span>
    to <span itemprop="highPrice">$1495</span>
    from <span itemprop="offerCount">8</span> sellers
    Sellers:
    <div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
        <a itemprop="url" href="save-a-lot-monitors.com/dell-30.html">
        Save A Lot Monitors - $1250</a>
    </div>
    <div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
        <a itemprop="url" href="jondoe-gadgets.com/dell-30.html">
        Jon Doe's Gadgets - $1350</a>
    </div>
  </div>
  ...
</div>

<div vocab="http://schema.org/" typeof="Product">
  <img property="image" src="dell-30in-lcd.jpg" alt="A Dell UltraSharp monitor"/>
  <span property="name">Dell UltraSharp 30" LCD Monitor</span>
  <div property="aggregateRating"
     typeof="AggregateRating">
    <span property="ratingValue">87</span>
    out of <span property="bestRating">100</span>
    based on <span property="ratingCount">24</span> user ratings
  </div>
  <div property="offers"  typeof="AggregateOffer">
    <span property="lowPrice">$1250</span>
    to <span property="highPrice">$1495</span>
    from <span property="offerCount">8</span> sellers
  Sellers:
  <div property="offers"  typeof="Offer">
    <a property="url" href="save-a-lot-monitors.com/dell-30.html">
     Save A Lot Monitors - $1250</a>
  </div>
  <div property="offers"  typeof="Offer">
    <a property="url" href="jondoe-gadgets.com/dell-30.html">
     Jon Doe's Gadgets - $1350</a>
  </div>
  ...
</div>

<script type="application/ld+json">
{
  "@context": "http://schema.org",
  "@type": "Product",
  "aggregateRating": {
    "@type": "AggregateRating",
    "bestRating": "100",
    "ratingCount": "24",
    "ratingValue": "87"
  },
  "image": "dell-30in-lcd.jpg",
  "name": "Dell UltraSharp 30\" LCD Monitor",
  "offers": {
    "@type": "AggregateOffer",
    "highPrice": "$1495",
    "lowPrice": "$1250",
    "offerCount": "8",
    "offers": [
      {
        "@type": "Offer",
        "url": "save-a-lot-monitors.com/dell-30.html"
      },
      {
        "@type": "Offer",
        "url": "jondoe-gadgets.com/dell-30.html"
      }
    ]
  }
}
</script>
Without Markup Microdata RDFa JSON-LD 
<a href="category/books.html">Books</a> >
 <a href="category/books-literature.html">Literature & Fiction</a> >
 <a href="category/books-classics">Classics</a>
<img src="catcher-in-the-rye-book-cover.jpg"
  alt="cover art: red horse, city in background"/>
The Catcher in the Rye - Mass Market Paperback
by <a href="/author/jd_salinger.html">J.D. Salinger</a>
4 stars - 3077 reviews
Price: $6.99
In Stock
Product details
224 pages
Publisher: Little, Brown, and Company - May 1, 1991
Language: English
ISBN-10: 0316769487
Reviews:
5 stars - <b>"A masterpiece of literature" </b>
by John Doe. Written on May 4, 2006
I really enjoyed this book. It captures the essential challenge people face
as they try make sense of their lives and grow to adulthood.
4 stars - <b>"love it LOLOL111!" </b>
by Bob Smith, Written on June 15, 2006
Catcher in the Rye is a fun book. It's a good book to read.

<body itemscope itemtype="http://schema.org/WebPage">
...
<div itemprop="breadcrumb">
  <a href="category/books.html">Books</a> >
  <a href="category/books-literature.html">Literature & Fiction</a> >
  <a href="category/books-classics">Classics</a>
</div>
<div itemscope itemtype="http://schema.org/Book">
<img itemprop="image" src="catcher-in-the-rye-book-cover.jpg"
     alt="cover art: red horse, city in background" />
<span itemprop="name">The Catcher in the Rye</span> -
 <link itemprop="bookFormat" href="http://schema.org/Paperback">Mass Market Paperback
by <a itemprop="author" href="/author/jd_salinger.html">J.D. Salinger</a>
<div itemprop="aggregateRating" itemscope itemtype="http://schema.org/AggregateRating">
  <span itemprop="ratingValue">4</span> stars -
  <span itemprop="reviewCount">3077</span> reviews
</div>
<div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
  Price: <span itemprop="price" content="6.99">$6.99</span>
  <meta itemprop="priceCurrency" content="USD" />
  <link itemprop="availability" href="http://schema.org/InStock">In Stock
</div>
Product details
<span itemprop="numberOfPages">224</span> pages
Publisher: <span itemprop="publisher">Little, Brown, and Company</span> -
 <meta itemprop="datePublished" content="1991-05-01">May 1, 1991
Language: <span itemprop="inLanguage">English</span>
ISBN-10: <span itemprop="isbn">0316769487</span>
Reviews:
<div itemprop="review" itemscope itemtype="http://schema.org/Review">
  <span itemprop="reviewRating">5</span> stars -
  <b>"<span itemprop="name">A masterpiece of literature</span>" </b>
  by <span itemprop="author">John Doe</span>,
  Written on <meta itemprop="datePublished" content="2006-05-04">May 4, 2006
  <span itemprop="reviewBody">I really enjoyed this book. It captures the essential
  challenge people face as they try make sense of their lives and grow to adulthood.</span>
</div>
<div itemprop="review" itemscope itemtype="http://schema.org/Review">
  <span itemprop="reviewRating">4</span> stars -
  <b>"<span itemprop="name">A good read.</span>" </b>
  by <span itemprop="author">Bob Smith</span>,
  Written on <meta itemprop="datePublished" content="2006-06-15">June 15, 2006
  <span itemprop="reviewBody">Catcher in the Rye is a fun book. It's a good book to read.</span>
</div>
</div>
...
</body>

<body vocab="http://schema.org/" typeof="WebPage">
...
<div property="breadcrumb">
  <a href="category/books.html">Books</a> >
  <a href="category/books-literature.html">Literature & Fiction</a> >
  <a href="category/books-classics">Classics</a>
</div>
<div  typeof="Book">
<img property="image" src="catcher-in-the-rye-book-cover.jpg"
    alt="cover art: red horse, city in background"/>
<span property="name">The Catcher in the Rye</span> -
 <link property="bookFormat" href="http://schema.org/Paperback">Mass Market Paperback
by <a property="author" href="/author/jd_salinger.html">J.D. Salinger</a>
<div property="aggregateRating"  typeof="AggregateRating">
  <span property="ratingValue">4</span> stars -
  <span property="reviewCount">3077</span> reviews
</div>
<div property="offers"  typeof="Offer">
  Price: <span property="price" content="6.99">$6.99</span>
  <meta property="priceCurrency" content="USD" />
  <link property="availability" href="http://schema.org/InStock">In Stock
</div>
Product details
<span property="numberOfPages">224</span> pages
Publisher: <span property="publisher">Little, Brown, and Company</span> -
 <meta property="datePublished" content="1991-05-01">May 1, 1991
Language: <span property="inLanguage">English</span>
ISBN-10: <span property="isbn">0316769487</span>
Reviews:
<div property="review"  typeof="Review">
  <span property="reviewRating">5</span> stars -
  <b>"<span property="name">A masterpiece of literature</span>" </b>
  by <span property="author">John Doe</span>,
  Written on <meta property="datePublished" content="2006-05-04">May 4, 2006
  <span property="reviewBody">I really enjoyed this book. It captures the essential
  challenge people face as they try make sense of their lives and grow to adulthood.</span>
</div>
<div property="review"  typeof="Review">
  <span property="reviewRating">4</span> stars -
  <b>"<span property="name">A good read.</span>" </b>
  by <span property="author">Bob Smith</span>,
  Written on <meta property="datePublished" content="2006-06-15">June 15, 2006
  <span property="reviewBody">Catcher in the Rye is a fun book. It's a good book to read.</span>
</div>
</div>
...
</body>

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  "@type": "WebPage",
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  "review": [
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      "author": "John Doe",
      "datePublished": "2006-05-04",
      "name": "A masterpiece of literature",
      "reviewBody": "I really enjoyed this book. It captures the essential challenge people face as they try make sense of their lives and grow to adulthood.",
      "reviewRating": "5"
    },
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      "@type": "Review",
      "author": "Bob Smith",
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Schema Version 1.999999