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GoodRelations - The Web Vocabulary for E-Commerce

This is the archive of the goodrelations dicussion list

GoodRelations is a standardized vocabulary for product, price, and company data that can (1) be embedded into existing static and dynamic Web pages and that (2) can be processed by other computers. This increases the visibility of your products and services in the latest generation of search engines, recommender systems, and other novel applications.

[goodrelations] How to get Google Rich Snippets in 5 days / GoodRelations markup

Martin Hepp martin.hepp at ebusiness-unibw.org
Tue Dec 20 02:13:56 CET 2011

Dear all:

As many of you know, Google has been pretty slow in the past with turning on Rich Snippets (augmented search results) for shop pages that expose GoodRelations rich data markup.

Today, I found a shop that added GoodRelations ca. five days ago (!) and is already showing Rich Snippets in Google. See the illustration at


for details.

The shop obviously uses the new free extension for Prestashop [1], developed by Makolab in Poland. Similar results should be obtainable using the other free extensions from [2], e.g. for Magento, Joomla/Virtuemart, OXID eShop, or for a Tradoria.de shop.

I personally think that one of the reasons for the much faster than usual activation of Rich Snippets for this shop is the fact that Prestashop has pretty good XML sitemap support on board, which allows Google to crawl the shop faster with less resources and thus helps updating the index faster. See


The critical aspect of a good XML sitemap is that it uses the "lastmod" attribute properly for indicating which pages changed when:

	<lastmod>2011-12-15</lastmod>   <!-- this line is crucial -->

Best wishes

Martin Hepp

[1] http://addons.prestashop.com/de/seo/3866-rich-snippets-and-semantic-seo-with-goodrelations.html
[2] http://wiki.goodrelations-vocabulary.org/Shop_extensions

martin hepp
e-business & web science research group
universitaet der bundeswehr muenchen

e-mail:  hepp at ebusiness-unibw.org
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