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Editorial Team
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Asked: 2026-06-03T12:28:00+00:00

hello I have a page ( http://schema.org/WebPage ) that contains a review ( http://schema.org/Review

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hello I have a page ( http://schema.org/WebPage ) that contains a review ( http://schema.org/Review )

the question are:

  • how to deal with duplicate contents?
  • is correct making elements belong to two or more scopes?
  • how to do this, repeating text twice?
  • or i should avoid multiple references?

example:

<html itemscope itemtype="http://schema.org/WebPage">
    <meta name="description" content="_________" itemprop="description">
    ...
    <div itemscope itemtype="http://schema.org/Review">
        <div itemprop="description">_________</div>
    </div>
    ...
</html>

the description belongs to the Review AND to the WebPage, so… what I should write in this case?

(note: in the previous example the string “__” is the same text paragraph, repeated twice)

EDIT:

can this be a solution? (the html5 spec doesn’t talk about this, but defines the itemref attribute)

<html itemscope itemtype="http://schema.org/WebPage" id="WEBPAGE">
    ...
    <div itemscope itemtype="http://schema.org/Review" id="REVIEW">
        <div itemprop="description" itemref="WEBPAGE REVIEW">_________</div>
    </div>
    ...
</html>

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1 Answer

  1. Editorial Team

    Quick answers

    • how to deal with duplicate contents?
      • use the attribute itemref
    • is correct making elements belong to two or more scopes?
      • Yes, this is what you use itemref for
    • how to do this, repeating text twice?
      • No, you only need to refer to the element
    • or i should avoid multiple references?
      • I don’t see any reason why you don’t wanna use multiple references

    Some Examples

    Include by wrapping

    When you use the itemref attribute you include all property contained within the referred element to a different scope.

    <body itemscope itemtype="http://schema.org/WebPage" itemref="wrapper">
    ...
    <div itemscope itemtype="http://schema.org/Review">
        ...
        <div id="wrapper">
            <div itemprop="description">_________</div>

            <div itemprop="some-other-property">_________</div>
        </div>
        ...
    </div>
    ...
</body>

    Include by wrapping – a different example

    Lets say you have a product with a few different offers outside the scope.

    <div itemscope itemtype="http://schema.org/Product" itemref="wrapper">
    ...
</div>

<div id="wrapper">
    <div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
        ...
    </div>

    <div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
        ...
    </div>

    <div itemprop="offers" itemscope itemtype="http://schema.org/Offer">
        ...
    </div>
</div>

    Include a specific property

    You might only wish to include one specific property outside the scope, to do this we can simply set the id directly on the targeted element with the itemprop specified.

    <body itemscope itemtype="http://schema.org/WebPage" itemref="target">
    ...
    <div itemscope itemtype="http://schema.org/Review">
        <div id="target" itemprop="description">_________</div>
    </div>
    ...
</body>

    Multiple references

    Maybe a wrapper isn’t applicable, then you can use multiple references. You separate them simply by space.

    <body itemscope itemtype="http://schema.org/WebPage" itemref="desc name">
    ...
    <div itemscope itemtype="http://schema.org/Review">
        <div id="desc" itemprop="description">_________</div>

        <div id="name" itemprop="name">_________</div>
    </div>
    ...
</body>

    Source

    See also thees pages for some other explanations and examples:
    http://www.w3.org/TR/2011/WD-microdata-20110405/
    http://www.whatwg.org/specs/web-apps/current-work/multipage/microdata.html

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