Carrd
Add the tag to a Carrd site, with an embed in its head.
In the editor, add an Embed element, set its Type to Code, its Style to Hidden and its Location to Head, and paste the tag into it. Then publish. Embeds need Carrd’s Pro Standard plan or above.
<script async data-domain="example.com" src="https://fiveb.ar/js/tally.js"></script>A Carrd site’s sections change only the part of the address after the #, so the whole site is
counted as one page, /, as Single-page
apps says. Each page of a site with several pages is counted on its own.
Once it’s live, check it works.