diff --git a/service.go b/service.go
index 130b1f4..e53c046 100644
--- a/service.go
+++ b/service.go
@@ -46,9 +46,9 @@
 	c.String(http.StatusExpectationFailed, err.Error())
 }
 
-func add(corpusID, docID, textID string, url string) error {
+func add(corpusID, docID, textID string, provider string, url string) error {
 	err := db.Update(func(txn *badger.Txn) error {
-		err := txn.Set([]byte(corpusID+"/"+docID+"/"+textID), []byte(url))
+		err := txn.Set([]byte(corpusID+"/"+docID+"/"+textID), []byte(provider+","+url))
 		return err
 	})
 	return err
@@ -74,9 +74,9 @@
 	r.LoadHTMLGlob("templates/*")
 
 	//
-	r.GET("/index", func(c *gin.Context) {
+	r.GET("/", func(c *gin.Context) {
 		c.HTML(http.StatusOK, "main.html", gin.H{
-			"korapServer": "https://korap.ids-mannheim.de/",
+			"korapServer": "https://korap.ids-mannheim.de/instance/test",
 		})
 	})
 
diff --git a/service_test.go b/service_test.go
index 643ebe3..936ec7e 100644
--- a/service_test.go
+++ b/service_test.go
@@ -24,14 +24,14 @@
 	assert.Equal(t, http.StatusNotFound, w.Code)
 	assert.Equal(t, "No entry found", w.Body.String())
 
-	assert.Nil(t, add("s11", "s12", "s13", "http://example.org"))
+	assert.Nil(t, add("s11", "s12", "s13", "sueddeutsche", "http://example.org"))
 
 	w = httptest.NewRecorder()
 	req, _ = http.NewRequest(http.MethodGet, "/s11/s12/s13", nil)
 
 	router.ServeHTTP(w, req)
 	assert.Equal(t, http.StatusOK, w.Code)
-	assert.Equal(t, "http://example.org", w.Body.String())
+	assert.Equal(t, "sueddeutsche,http://example.org", w.Body.String())
 }
 
 func TestAssetRoute(t *testing.T) {