Our third party metrics and dashboard have had an exciting revamp. With new metrics like blocking CPU, you can now see exactly who is really to blame for a crappy user experience. We've also given you the ability to monitor individual third parties over time and create performance budgets for them.
Or is it really you, and not me? We now automatically group all the requests in our third party waterfall chart, letting you easily identify all the third party services used on your website.
For each third party, you get the number of requests and size for each content type. There's also a first party comparison you can toggle on/off to see what proportion of your requests come from first party vs third party.