The offsite JS By Page Report allows you to see which offsite javascript scripts each page on a website is calling.
This report lists each Source URL found and the scripts that exist on them. A common way to use this report, for example, would be to type a script name into the "filter text.." filter in order to limit it to one of those scripts and the source URLs will be a list of every page on which it occurs.
The source page the script is loaded from
The URL to the remote script