What we do is a top level filter to map subdomains into a group of top level folders: Filter: Group pages by hostname Filter type: Custom Filter Field A -> E

What we do is a top level filter to map subdomains into a group of top level folders: Filter: Group pages by hostname Filter type: Custom Filter Field A -> Extract A: Hostname (.) Field B -> Extract B: Request URI (.) Output To -> Constructor: Request URI (/subdomains/$A1$B1 Field A Required: Yes Field B Required: Yes Override Output Field: Yes Case Sensitive: No "/subdomains/" can be any arbitrary top level grouping that makes sense to you. We use an additional filter to strip /subdomains/domain.com and /subdomains/www.domain.com back off, so the primary site's URLs appear in the report normally.