“…In all cases of reference rot, the temporary or irretrievable loss of access to a URL leads to information discontinuity and thus compromises reference‐related data or information integrity (Teixeira da Silva, 2021). It is thus necessary for libraries, academic institutes and journals to preserve information (Kirchhoff, 2008; Lynch, 2017). Some measures or tools to counter reference rot allow URLs to be preserved at the Internet Archive's Wayback Machine (https://archive.org/index.php), hereafter referred to as the Internet Archive for simplicity, Webrecorder (https://webrecorder.net/; now Conifer: https://conifer.rhizome.org/), Portico (http://www.portico.org/), LOCKSS (http://www.lockss.org/), CLOCKSS (https://clockss.org/) or Perma (https://perma.cc/), free in the first case, open source in the second case, but paid in the latter four cases.…”