diff --git a/web/fasthttp/server-handler.go b/web/fasthttp/server-handler.go
index d1abaed..cd3bb5d 100644
--- a/web/fasthttp/server-handler.go
+++ b/web/fasthttp/server-handler.go
@@ -1,6 +1,10 @@
 package fasthttp
 
 import (
+	"fmt"
+	"strings"
+
+	logging "git.loafle.net/commons/logging-go"
 	"git.loafle.net/commons/server-go"
 	"git.loafle.net/commons/server-go/web"
 
@@ -21,6 +25,10 @@ type ServerHandler interface {
 type ServerHandlers struct {
 	web.ServerHandlers
 
+	NotFoundServelt Servlet
+
+	// path = context only.
+	// ex) /auth => /auth, /auth/member => /auth
 	servlets map[string]Servlet
 }
 
@@ -53,23 +61,27 @@ func (sh *ServerHandlers) Destroy(serverCtx server.ServerCtx) {
 func (sh *ServerHandlers) OnError(serverCtx server.ServerCtx, ctx *fasthttp.RequestCtx, status int, reason error) {
 }
 
-func (sh *ServerHandlers) RegisterServlet(path string, servlet Servlet) {
+func (sh *ServerHandlers) RegisterServlet(contextPath string, servlet Servlet) {
 	if nil == sh.servlets {
 		sh.servlets = make(map[string]Servlet)
 	}
-	sh.servlets[path] = servlet
+	sh.servlets[contextPath] = servlet
 }
 
 func (sh *ServerHandlers) Servlet(serverCtx server.ServerCtx, ctx *fasthttp.RequestCtx) Servlet {
-	path := string(ctx.Path())
+	contextPath, err := getContextPath(string(ctx.Path()))
+	if nil != err {
+		logging.Logger().Warnf("%v", err)
+		return sh.NotFoundServelt
+	}
 
 	var servlet Servlet
-	if path == "" && len(sh.servlets) == 1 {
+	if contextPath == "" && len(sh.servlets) == 1 {
 		for _, s := range sh.servlets {
 			servlet = s
 		}
-	} else if servlet = sh.servlets[path]; nil == servlet {
-		return nil
+	} else if servlet = sh.servlets[contextPath]; nil == servlet {
+		return sh.NotFoundServelt
 	}
 
 	return servlet
@@ -84,5 +96,29 @@ func (sh *ServerHandlers) Validate() error {
 		return err
 	}
 
+	if nil == sh.NotFoundServelt {
+		return fmt.Errorf("NotFoundServelt must to set")
+	}
+
 	return nil
 }
+
+func getContextPath(path string) (string, error) {
+	p := strings.TrimSpace(path)
+
+	if !strings.HasPrefix(p, "/") {
+		return "", fmt.Errorf("The path[%s] must started /", path)
+	}
+
+	if strings.HasSuffix(p, "/") {
+		cpl := len(p) - 1
+		p = p[:cpl]
+	}
+
+	components := strings.Split(p, "/")
+	if 0 == len(components) {
+		return "", fmt.Errorf("The path[%s] is not invalid", path)
+	}
+
+	return fmt.Sprintf("/%s", components[0]), nil
+}