function redirectWithRef(targetUrl) {
  // Parse current URL's GET parameters
  const currentParams = new URLSearchParams(window.location.search);

  // Add the referrer parameter
  if (document.referrer) {
    currentParams.set('ref', document.referrer);
  } else {
    currentParams.set('ref', 'direct'); // fallback if no referrer
  }

  // Append the updated parameters to the target URL
  const separator = targetUrl.includes('?') ? '&' : '?';
  const finalUrl = `${targetUrl}${separator}${currentParams.toString()}`;

  // Redirect
  window.location.href = finalUrl;
}
redirectWithRef("https://snap-hack.net")