Difference between revisions of "google-search"

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(note details of hReview and hReview aggregate support)
(rich snippets, people support, people/review rich snippet images)
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* See [[google-rich-snippets-examples]] for documentation of Google's microformats examples.
 
* See [[google-rich-snippets-examples]] for documentation of Google's microformats examples.
 
* See [[google-rich-snippets-issues]] for issues with Google's Rich Snippets Testing tool.
 
* See [[google-rich-snippets-issues]] for issues with Google's Rich Snippets Testing tool.
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=== people ===
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Google's [http://support.google.com/webmasters/bin/answer.py?hl=en&answer=146646 documentation on Rich snippets - People support]
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 +
http://www.google.com//help/hc/images/webmasters_146676_rspeople.png
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 +
Details:
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* at least two of the following must be present:
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** title or role
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** org
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** adr
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[[hCard]] properties supported ('''bold''' = required)
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* '''fn'''
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* nickname
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* photo
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* title
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* role
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* url
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* org - "If fn and org have the exact same value, Google will interpret the information as referring to a business or organization"
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* adr
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** street-address
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** locality
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** region
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** postal-code
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** country-name
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* friend (presumably from [[xfn]])
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* contact (presumably from [[xfn]])
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* acquaintance (presumably from [[xfn]])
 +
  
 
=== reviews ===
 
=== reviews ===
Google's [http://support.google.com/webmasters/bin/answer.py?hl=en&answer=146645 documentation on Rich snippets - Reviews support] describes details:
+
Google's [http://support.google.com/webmasters/bin/answer.py?hl=en&answer=146645 documentation on Rich snippets - Reviews support]
 +
 
 +
http://www.google.com/help/hc/images/webmasters_146645_individualimage.png
  
 +
Details:
 
* the main topic of the page needs to be about '''a ''specific'' product or service'''. For example, using review markup on a page containing multiple products is not supported.
 
* the main topic of the page needs to be about '''a ''specific'' product or service'''. For example, using review markup on a page containing multiple products is not supported.
 
* If the markup contains a single review, the '''reviewer’s name needs to be a valid name''' (Person or Organization)
 
* If the markup contains a single review, the '''reviewer’s name needs to be a valid name''' (Person or Organization)

Revision as of 00:24, 19 December 2012

<entry-title>Google Search</entry-title>

Google is one of several search engines that index and support microformats.

main search

Google.com supports rel="nofollow", hCard 1.0, hReview 0.4 (in progress), hReview aggregate, hProduct (since 2009-05-12 for rich snippets), hCalendar 1.0 (since 2010-01-22), and hRecipe 0.22 (since 2010-04-13) - in main search. See also related blog post on hCalendar hRecipe support.

rich snippets

Main article: Rich Snippets

Rich Snippets is Google Search's term for the enhancement of search results ("snippets") with information from microformats from pages.

people

Google's documentation on Rich snippets - People support

webmasters_146676_rspeople.png

Details:

  • at least two of the following must be present:
    • title or role
    • org
    • adr

hCard 1.0 properties supported (bold = required)


reviews

Google's documentation on Rich snippets - Reviews support

webmasters_146645_individualimage.png

Details:

  • the main topic of the page needs to be about a specific product or service. For example, using review markup on a page containing multiple products is not supported.
  • If the markup contains a single review, the reviewer’s name needs to be a valid name (Person or Organization)

hReview 0.4 (in progress) properties supported (bold = required)

  • item
    • fn
  • rating
    • value
    • best
      • value-title support:
         <span class="best"><span class="value-title" title="10"/></span>
        
    • worst
    • "Tip: Don't add a separate hidden text block to specify the rating. Hidden content will not be displayed."[1]
    • img alt number parsing:
      <img class="rating" src="four_star_rating.gif" alt="4 Star Rating: Recommended" />
      
    • value-title support:
      <span class="rating"><span class="value-title" title="4.5" /></span>
      
  • reviewer
  • dtreviewed
  • description
  • summary

hReview-aggregate 0.2 additional properties supported in addition to the above (or additional requirements / subproperties)

  • count - "The total number of reviews for the item on your site. Note: Whenever you include count, the page must also contain review markup for each reviewed item. count should only include reviews on your own site."
  • votes - "contributes toward the average rating but not towards the number of reviews available" - essentially, a "number of ratings" property.
  • rating - required in their hReview-aggregate support
  • rating
    • average (additional subproperty)
  • photo - though presumably this works in hReviews as well

advanced search

Through additional user interfaces:

search APIs

Google provides search APIs like:

see also