more stuff; insight: use proxy for upstream queries

middleware/zone.go

@@ -4,12 +4,12 @@ import "strings"
 
 type Zones []string
 
-// Matches checks to see if other matches p.
-// The match will return the most specific zones
-// that matches other. The empty string signals a not found
+// Matches checks to see if other matches p.  The match will return the most
+// specific zones that matches other. The empty string signals a not found
 // condition.
 func (z Zones) Matches(qname string) string {
 	zone := ""
+	// TODO(miek): use IsSubDomain here?
 	for _, zname := range z {
 		if strings.HasSuffix(qname, zname) {
 			if len(zname) > len(zone) {