Squarespace
Add the tag to every page of a Squarespace site, with code injection.
Paste the tag into the Header box under Code injection, and save. Code injection needs the Core plan or above. Squarespace’s help on code injection shows where to find it in the site editor.
<script async data-domain="example.com" src="https://fiveb.ar/js/tally.js"></script>Once it’s live, check it works.