diff --git a/go.mod b/go.mod
index 6934c87..d8bfcbe 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/emvi/api-go v0.2.2
 	github.com/emvi/logbuch v1.1.1
-	github.com/emvi/pirsch v1.1.1
+	github.com/emvi/pirsch v1.2.0
 	github.com/go-sql-driver/mysql v1.5.0 // indirect
 	github.com/gorilla/mux v1.7.4
 	github.com/gosimple/slug v1.9.0
diff --git a/go.sum b/go.sum
index ccbb7bf..1bec4b4 100644
--- a/go.sum
+++ b/go.sum
@@ -11,6 +11,8 @@ github.com/emvi/pirsch v1.1.0 h1:uMnxWqbcKLpt1iBNP52aocCkgpfZAisvKcF0VzpVHv8=
 github.com/emvi/pirsch v1.1.0/go.mod h1:+YmBbltJ3feZz9L/QQyqwywltYvQKBfzrGD51TPKl5g=
 github.com/emvi/pirsch v1.1.1 h1:memw5fHl6ZY1dcB4Ic5tTtsbQkU9wTCjBlXi4G8D20o=
 github.com/emvi/pirsch v1.1.1/go.mod h1:GDijqLHM331iWtmDmc7th19RxDrZadRkKoNvd9/kDX8=
+github.com/emvi/pirsch v1.2.0 h1:k5OJwgE8/Zdq7raQNRF4aNHxWxPq7En51gWMMEFzinA=
+github.com/emvi/pirsch v1.2.0/go.mod h1:GDijqLHM331iWtmDmc7th19RxDrZadRkKoNvd9/kDX8=
 github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
 github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs=
 github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg=
diff --git a/main.go b/main.go
index cd0ac92..8db7eba 100644
--- a/main.go
+++ b/main.go
@@ -60,7 +60,7 @@ func logEnvConfig() {
 
 func serveAbout() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		tracker.Hit(r)
+		tracker.Hit(r, nil)
 		tplCache.Render(w, "about.html", struct {
 			Articles []emvi.Article
 		}{
@@ -71,14 +71,14 @@ func serveAbout() http.HandlerFunc {
 
 func serveLegal() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		tracker.Hit(r)
+		tracker.Hit(r, nil)
 		tplCache.Render(w, "legal.html", nil)
 	}
 }
 
 func serveBlogPage() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		tracker.Hit(r)
+		tracker.Hit(r, nil)
 		tplCache.Render(w, "blog.html", struct {
 			Articles map[int][]emvi.Article
 		}{
@@ -105,7 +105,7 @@ func serveBlogArticle() http.HandlerFunc {
 		}
 
 		// track the hit if the article was found, otherwise we don't care
-		tracker.Hit(r)
+		tracker.Hit(r, nil)
 
 		tplCache.RenderWithoutCache(w, "article.html", struct {
 			Title     string
@@ -121,7 +121,7 @@ func serveBlogArticle() http.HandlerFunc {
 
 func serveTracking() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		tracker.Hit(r)
+		tracker.Hit(r, nil)
 		start, _ := strconv.Atoi(r.URL.Query().Get("start"))
 
 		if start > 365 {
diff --git a/tracking/statistics.go b/tracking/statistics.go
index a0339c4..1f9286c 100644
--- a/tracking/statistics.go
+++ b/tracking/statistics.go
@@ -86,7 +86,7 @@ func GetHourlyVisitorsToday() (template.JS, template.JS) {
 }
 
 func GetActiveVisitors() int {
-	visitors, err := analyzer.ActiveVisitors(time.Minute * 5)
+	visitors, err := analyzer.ActiveVisitors(pirsch.NullTenant, time.Minute*5)
 
 	if err != nil {
 		logbuch.Error("Error reading active visitors", logbuch.Fields{"err": err})
@@ -96,11 +96,6 @@ func GetActiveVisitors() int {
 	return visitors
 }
 
-func getStartTime(start int) time.Time {
-	startTime := today()
-	return startTime.Add(-time.Hour * 24 * time.Duration(start-1))
-}
-
 func getLabelsAndData(visitors []pirsch.VisitorsPerDay) (template.JS, template.JS) {
 	var labels strings.Builder
 	var dp strings.Builder