Yes, PushEngage can be integrated with Blogger, Wix, Zapier, Opencart etc. We do have a plugin for Wordpress as well. Click Here to know how to integrate them.
To integrate PushEngage with Blogger you need to copy paste the Core JS code in the head section of your blogger site.It would look like this.
This is it if you're setting up PushEngage for HTTP site.
You need to do some additional steps if it's an HTTPS website.
Go to Subscription Dialog Box Settings under Settings in PushEngage Account.
Select HTTPS, then select any of the optin options, that would allow you to select Quick Install to Yes.
Select Yes to Quick Install.
It would look like this
This is it and now you can send notifications to the subscribers.