diff --git a/internal/web/router/router.go b/internal/web/router/router.go
index 7c9ab3e..735c52d 100644
--- a/internal/web/router/router.go
+++ b/internal/web/router/router.go
@@ -135,6 +135,11 @@ func (s *service) initRouters(conf *model.Config, injector *do.Injector) *gin.En
 	api := r.Group("/api/")
 	s.setupApi(api, injector)
 
+	// do not allow crawling
+	r.GET("/robots.txt", func(c *gin.Context) {
+		c.String(http.StatusOK, "User-agent: *\nDisallow: /")
+	})
+
 	// static files
 	r.Use(static.Serve("/", static.LocalFile("./resource/frontend", true)))