Gets information about the search domains owned by this account. Can be limited to specific domains. Shows all domains by default. To get the number of searchable documents in a domain, use the console or submit a <code>matchall</code> request to your domain's search endpoint: <code>q=matchall&amp;q.parser=structured&amp;size=0</code>. For more information, see <a href="http://docs.aws.amazon.com/cloudsearch/latest/developerguide/getting-domain-info.html" target="_blank">Getting Information about a Search Domain</a> in the <i>Amazon CloudSearch Developer Guide</i>.