Evidence:

• • HTML <script>: https://www.spectralgap.org/wp-content/mu-plugins/gravatar-hovercards/wpgroho.js?m=1610363240i
• • HTML <script>: https://www.spectralgap.org/wp-content/js/bilmur.min.js?i=17&m=202546
• • HTML <link>: https://www.spectralgap.org/wp-content/themes/h4/global.css?m=1420737423i&cssminify=yes
• • HTML <link>: https://www.spectralgap.org/wp-content/mu-plugins/global-print/global-print.css?m=1465851035i&cssminify=yes
• • HTML <link>: https://www.spectralgap.org/_static/??/wp-content/themes/pub/intergalactic/style.css,/wp-content/mu-plugins/jetpack-plugin/sun/_inc/genericons/genericons/genericons.css?m=1753279645j&cssminify=yes
• ... and 3 more