Can PushAlert be implemented on non-https (non-secure http) websites?

Can PushAlert be implemented on non-https (non-secure http) websites?

PushAlert can be implemented on both HTTP and HTTPS websites. The implementation is a bit different but it's possible on both easily. In case of HTTP websites, we will provide you a branded HTTPS subdomain on our server, with a URL structure https://yourdomain.pushalert.co 

You can read more 
about this works from here.