SEO requires that you localize your pathnames. If you have chosen to implement one hierarchy (
http://documentation.magnolia-cms.com/technical-guide/i18n.html#Onehierarchyormany) for all languages you would like to specify the localized name of the website document in a property.
The module urltrans allows you to specify the localized name of the website document with the localized property "name" (e.g. name_de, name_fr,...). The name property is added to the STK dialog. Only safe characters are allowed.
Links are rendered in the localized form (transformer).
When the document with the localized URL is accessed, the filter replaces the URL with the URL of the default language. The filter is positioned in the chain to allow security to work. Magnolia cache stores the documents with the localized URL. On public instances the query to lookup the localized URL in the JCR repository is cached in memory.
http://forum.magnolia-cms.com/forum/thread.html?threadId=9117cf02-aea9-431b-8205-be1348c486e6