GoCounter
Simple Go hit tracking with a transparent GIF endpoint, a beacon endpoint, and JSON stats.
Use a different data-site value for each site, for example housingpanel and blockbus.
Embed the script:
<script async src="https://gotest2.inventedtheinternet.com/tracker.js" data-site="housingpanel"></script>
Or use the no-JS pixel:
<img src="https://gotest2.inventedtheinternet.com/t.gif?site=blockbus&path=/pricing" alt="" width="1" height="1" />