Raven is distributed in a few different methods, but they all should be included inside the <head> of your page.
You should try and include Raven as high up on the page as possible. Ideally, you’d like to include Raven first, in order to potentially catch errors from other JavaScript files.
We serve our own builds off of Amazon CloudFront. They are accessible over both http and https, so we recommend leaving the protocol off.
<script src="//d3nslu0hdya83q.cloudfront.net/dist/1.0.0/raven.min.js"></script>
If you’re feeling adventurous, we also host a master build, which should be considered potentially unstable, but bleeding edge.
<script src="//d3nslu0hdya83q.cloudfront.net/builds/master/raven.min.js"></script>