diff --git a/web/src/challange/fingerprinting.js b/web/src/challange/fingerprinting.js
index 544d232..d8b015e 100644
--- a/web/src/challange/fingerprinting.js
+++ b/web/src/challange/fingerprinting.js
@@ -31,8 +31,9 @@ class Fingerprinting {
      */
     isNotHeadless(){
         const isHeadless = !!navigator.webdriver // @ts-ignore
-            || !!window.chrome
-            || !!navigator.languages
+            || !!window.chrome // @ts-ignore
+            || !!navigator.callPhantom || !!navigator.__phantom
+            || !window.screenX || !window.screenY || !window.outerHeight || !window.outerWidth
             || navigator.userAgent.toLowerCase().includes("headless");
         return !isHeadless;
     }