Add additional check to only extract titles from questions

app/models/post.rb

@@ -138,7 +138,7 @@ def get_revision_count # rubocop:disable Style/AccessorMethodName
   end
 
   def parse_domains
-    hosts = (URI.extract(body || '') + URI.extract(title || '')).map do |x|
+    hosts = part_to_extract_from_domains.map do |x|
       begin
         URI.parse(x).hostname.gsub(/www\./, '').downcase
       rescue
@@ -153,4 +153,12 @@ def parse_domains
       Rails.cache.delete "spam_domain_post_counts_##{domain.id}"
     end
   end
+
+  private
+
+  def part_to_extract_from_domains
+    answer? ?
+      URI.extract(body || '') :
+      (URI.extract(body || '') + URI.extract(title || ''))
+  end
 end