diff --git a/README.md b/README.md
index 62a493f..7c22298 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ func main() {
 	mux.HandleFunc("/out", func(rw http.ResponseWriter, r *http.Request) { arr := []int{0, 1}; fmt.Print(arr[9]) })
 	log.Info("start")
 
-	err := ksrv.New().Listen("0.0.0.0:8080").Serve()
+	err := ksrv.New().Handle(mux).Listen("0.0.0.0:8080").Serve()
 	if err != nil {
 		panic(err)
 	}
diff --git a/kserver.go b/kserver.go
index ecd773b..77b92cb 100644
--- a/kserver.go
+++ b/kserver.go
@@ -67,8 +67,10 @@ func New() *kserver {
 	if err != nil {
 		panic(err)
 	}
-	k := &kserver{}
-	k.l = l
+	k := &kserver{
+		l:     l,
+		nolog: func(r *http.Request) bool { return true },
+	}
 	return k
 }
 
@@ -82,14 +84,18 @@ func (k *kserver) Middleware(next http.Handler) http.Handler {
 	)
 }
 
+func (k *kserver) SetNoLogCondition(nolog func(r *http.Request) bool) {
+	k.nolog = nolog
+}
+
 func (k *kserver) catch(rw *responseWriter, r *http.Request) {
 	ex := recover()
 	if ex != nil {
 		Abort(rw, ex)
-		k.l.ErrorF(log.H{"Status": rw.StatueCode, "IP": GetIP(r), "Method": r.Method, "URL": r.URL.Path}, ex)
+		k.l.ErrorF(log.H{"Status": rw.StatueCode, "IP": GetIP(r), "Method": r.Method, "URL": r.URL.Path, "Agent": r.Header.Get("User-Agent")}, ex)
 	} else if rw.StatueCode >= 500 {
-		k.l.ErrorF(log.H{"Status": rw.StatueCode, "IP": GetIP(r), "Method": r.Method, "URL": r.URL.Path}, rw.err)
-	} else {
-		k.l.InfoF(log.H{"Status": rw.StatueCode, "IP": GetIP(r), "Method": r.Method, "URL": r.URL.Path})
+		k.l.ErrorF(log.H{"Status": rw.StatueCode, "IP": GetIP(r), "Method": r.Method, "URL": r.URL.Path, "Agent": r.Header.Get("User-Agent")}, rw.err)
+	} else if k.nolog != nil && k.nolog(r) {
+		k.l.InfoF(log.H{"Status": rw.StatueCode, "IP": GetIP(r), "Method": r.Method, "URL": r.URL.Path, "Agent": r.Header.Get("User-Agent")})
 	}
 }
diff --git a/server.go b/server.go
index 0482197..4f71f87 100644
--- a/server.go
+++ b/server.go
@@ -8,7 +8,14 @@ import (
 
 type kserver struct {
 	http.Server
-	l *log.Logger
+	l     *log.Logger
+	nolog func(r *http.Request) bool
+}
+
+// Listen to addr
+func (s *kserver) Handle(h http.Handler) *kserver {
+	s.Handler = h
+	return s
 }
 
 // Listen to addr
diff --git a/test/main.go b/test/main.go
index bfa9581..94bfae7 100644
--- a/test/main.go
+++ b/test/main.go
@@ -18,7 +18,7 @@ func main() {
 	mux.HandleFunc("/out", func(rw http.ResponseWriter, r *http.Request) { arr := []int{0, 1}; fmt.Print(arr[9]) })
 	log.Info("start")
 
-	err := ksrv.New().Listen("0.0.0.0:8080").Serve()
+	err := ksrv.New().Handle(mux).Listen("0.0.0.0:8080").Serve()
 	if err != nil {
 		panic(err)
 	}