diff --git a/removetracking.go b/removetracking.go
index f37d4ee..ea1f8a8 100644
--- a/removetracking.go
+++ b/removetracking.go
@@ -18,25 +18,14 @@ func removeTracking(input string) (output string, err error) {
 		return input, err
 	}
 
-	// Remove the URL part starting with "?utm_", which is
-	// used for tracking purposes.
-	output = strings.Split(resp.Request.URL.String(), "?utm_")[0]
+	output = resp.Request.URL.String()
 
-	// Remove the URL part starting with "?wt_", which is
-	// used for Webtrekk tracking.
-	output = strings.Split(output, "?wt_")[0]
+	// Remove the URL part starting with known tracking parameters.
+	trackingParameters := [6]string{"?utm_", "?wt_", "#ref=", "?ref=", "?pk_", "?source="}
 
-	// Remove the URL part starting with "#ref=", which is
-	// used for tracking the referer by some feeds.
-	output = strings.Split(output, "#ref=")[0]
-
-	// Remove the URL part starting with "?ref=", which is
-	// used for tracking the referer by some feeds.
-	output = strings.Split(output, "?ref=")[0]
-
-	// Remove the URL part starting with "?pk_", which is
-	// used for tracking purposes.
-	output = strings.Split(output, "?pk_")[0]
+	for _, trackingParameter := range trackingParameters {
+		output = strings.Split(output, trackingParameter)[0]
+	}
 
 	return output, err
 }