Everflow Splash page google script

<script>

function updateLinks() {
  const TOP_LEVEL_DOMAIN = 'uvt9ntrk.com';
  const urlArgs = new URLSearchParams(window.location.search);
  const allLinks = document.getElementsByTagName('a');

  for (let i = 0; i < allLinks.length; i++) {
    const link = allLinks[i];
    const href = link.href;

    if (href.includes(TOP_LEVEL_DOMAIN)) {
      const separator = href.includes('?') ? '&' : '?';
      const newHref = href + separator + urlArgs.toString();
      link.href = newHref;
    }
  }
}

updateLinks();

</script>