Webmaster Central Blog
Official news on crawling and indexing sites for the Google index
Rich snippets for shopping sites
martedì, novembre 02, 2010
Webmaster Level: All
In time for the holiday season, we now support rich snippets for shopping (e-commerce) sites! As many of you know,
rich snippets
are search results that have been enhanced using structured data from your web pages. Our new format shows price, availability, and product reviews on pages offering a product for sale. Here’s a result for [
office lava lamp
]:
As a webmaster, there are two ways that you can provide the information needed for product rich snippets to show up for your site, both described on the
Product rich snippets help page
:
Option 1: Provide a Merchant Center feed.
Many sites already provide
Merchant Center feeds
for use in
Google Product Search
, which means that most of the work needed for rich snippets is already done. For Google to make use of Merchant Center feeds for rich snippets, you should also use the
rel=”canonical” link element
on your product pages. By adding rel=”canonical” to your pages, Google can match the URLs in your feed to the pages found by our crawler.
Update on November 4, 2010:
In order to have your product review information in your rich snippets, you can submit your product ratings directly in your
feed
, or you can work with one of our
reviews partners
to submit this information. If you work with a partner, your reviews information will appear in rich snippets, and shoppers on Google Product Search will be able to see your
full-length reviews
on relevant product pages, branded with your logo.
Option 2: Add markup to your site.
If prices for your products tend to change only infrequently, then adding markup is an alternative method to provide product data for rich snippets. We’ve updated our
product markup format
to allow a variety of different types of shopping sites to participate. In addition to the Google format, we support two other standards: the
hProduct
microformat and
GoodRelations
. You can use the
rich snippets testing tool
to test your markup and make sure it’s being parsed correctly.
This feature is currently available to merchants located in the US, but we will be rolling it out in more markets soon. Additionally, there are a number of
rich snippets formats
that can be used
world-wide in various languages
—make your snippets compelling and useful! Should you have any questions about the use of rich snippets, check out our
FAQs
and feel free to post in our
Webmaster Help Forum
.
Q&A
Which should I provide -- a Merchant Center feed or markup?
For most merchants, providing a Merchant Center feed is the best bet. That way your product prices and availability are updated quickly, and the data can be shown in rich snippets as well as in other applications like Google Shopping and Product Ads. If prices and availability change only infrequently, and you don’t want to set up a feed, then adding markup is also a valid option.
If I add markup to my site, will Google show product rich snippets for my pages?
We can’t guarantee that providing a feed or adding markup will result in rich snippets being shown. Note also that it may take a few weeks after providing data for rich snippets to be shown. If you mark up your pages, we encourage you to make sure that the data is parsed correctly by Google by using the
rich snippets testing tool
. The testing tool updates are rolling out over the next few days, so in this interim period the testing tool may not show previews for some types of markup.
I’ve already done reviews markup for my product offer pages. Should I add product/offer markup as well?
Yes, absolutely. Rich snippets are shown if the information provided accurately represents the main focus of the page. Therefore, for product pages you should add markup using the relevant offer/product fields which can include nested reviews.
Written by Nitin Shetti and Mircea Ciurumelea, Search Quality team
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