Using guzzle with a plugin and cache I've been adapting the very useful geo plugin to fetch currency and exchange rates based on a visitors IP address. [ see: https://github.com/lukeholder/craft-geo ]

The plugin uses Craft's vendor package "guzzle" to contact 3rd party APIs and request data which then gets cached in JSON form.

When its not cached i was wondering how can you tell if Guzzle is making the request - there are no headers in dev tools and no noticeable traffic for the requests. So how can you see if the Guzzle has guzzled when cache is off?
Update:

Turns out server side initiated remote calls won't be logged in your browser's Network tab (only client-side ones).  Which now that I type that out, seems very obvious.



If Guzzle actually makes a request, then it will show up in your browser's inspector's "Network" tab.