CloudFlareのメールアドレスクローキング

cf-email-croaking.html

<p>
  <a href="http://cloudflare.com/email-protection.html#bcd7c5d3fcd4ddd5d08ec992d2d9c8">
    <span id="__cf_email__" class="4c2735230c242d25207e3962222938">
      [email&nbsp;protected]
    </span>
    <script type="text/javascript">
/* <![CDATA[ */
(function () {
  try {
    var s, a, i, j, r, c, l = document.getElementById("__cf_email__");
    a = l.className;

    if (a) {
      s = '';
      r = parseInt(a.substr(0, 2), 16);

      for (j = 2; a.length - j; j += 2) {
        c = parseInt(a.substr(j, 2), 16) ^ r;
        s += String.fromCharCode(c);
      }

      s = document.createTextNode(s);
      l.parentNode.replaceChild(s, l);
    }
  } catch (e) {
  }
})();
/* ]]> */
    </script>
  </a>
</p>