alexa_us.rb in PageRankr-2.0.1

- old
+ new

@@ -4,11 +4,17 @@
 module PageRankr
   class Ranks
     class AlexaUs
       include Rank
       
+      # Alexa may sometimes return a result for the incorrect site and thus it is necessary to check if
+      # the results returned are for the site we want.
+      #
+      # For example, slocourts.net returns results for ca.gov, presumably because www.slocourts.ca.gov redirects
+      # to slocourts.net. Clearly something is wrong with how Alexa handles this case and so in the event this
+      # happens we treat the results as if there were no results.
       def xpath
-        "//reach/@rank"
+        "//popularity[contains(@url, '#{@site.domain}')]/../reach/@rank"
       end
       
       def request
          @request ||= Typhoeus::Request.new("http://data.alexa.com/data",
               :params => {:cli => 10, :dat => "snbamz", :url => @site.to_s})
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