A quick reference of production-ready CDN embed tags for jQuery.
Google CDN Embeds
<!-- jQuery 3.x (Recommended) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<!-- jQuery 2.x (Legacy non-IE8) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<!-- jQuery 1.x (Legacy IE6-8 compatible) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
Official jQuery CDN (with Subresource Integrity)
<script
src="https://code.jquery.com/jquery-3.7.1.min.js"
integrity="sha256-/JqT3SQfawRcv/BIHPThkBvs0OEvtFFmqPF/lYI/Cxo="
crossorigin="anonymous">
</script>