A keyword search request with "ContentClass:STS_Web" gets all the webs the current user has access to. I need the SPWeb-GUID from every search result, but I haven't found a way yet. The standard result has no ID column. Adding properties to the Query like "ID", "GUID", "Web-Id" resulted in an always empty column or the search executed forever without results (i waited 3 minutes or so).
How do I get the GUID?