Is A/B Testing on Squarespace Possible?

I'm keen to use Squarespace for testing landing pages. I run a lot of PPC campaigns and A/B testing is a key part of what I do. Ideally, I'd like to be using Squarespace, but I NEED to be running A/B testing. Is there a good way to A/B test on Squarespace?

I can see that this question was asked a few years ago, but has anyone found a good solution for this recently?

Sam, 

The only way i've found to do this is by utilizing Google Optimize & Google Analytics to run experiments. It would be awesome if Squarespace could integrate a tool directly into the platform though. 

I'm having trouble adding my Google Optimize snippet to custom code without breaking my existing GA tagging. Have you been able to successfully setup? 

Once in Google Optimize any experiments I create don't display in live. I'm doing something wrong but I don't know what?