<script type="text/javascript">
  //<![CDATA[
  (function(){
    var a = function() {try{return !!window.addEventListener} catch(e) {return !1} },
    b = function(b, c) {a() ? document.addEventListener("DOMContentLoaded", b, c) : document.attachEvent("onreadystatechange", b)};
    b(function(){
      var a = document.getElementById('cf-content');a.style.display = 'block';
      setTimeout(function(){
        var s,t,o,p,b,r,e,a,k,i,n,g,f, ayBwvky={"e":!+[]+!![]+!![]+!![]+!![]+!![]+!![]};
        t = document.createElement('div');
        t[removed]="<a href='/'>x</a>";
        t = t.firstChild.href;r = t.match(/https?:\/\//)[0];
        t = t.substr(r.length); t = t.substr(0,t.length-1);
        a = document.getElementById('jschl-answer');
        f = document.getElementById('challenge-form');
        ;ayBwvky.e*=+((+!![]+[])+(!+[]+!![]+!![]));a.value = parseInt(ayBwvky.e, 10) + t.length; '; 121'
        f.submit();
      }, 4000);
    }, false);
  })();
  //]]>
</script>

이게 5초(혹은 10)동안 잠시 기다리세요라고 뜨는 HTML파일 안에 삽입됨.

번거롭지.