XCode does not have a quick way to allow you to block network traffic in apps on the XCode simulator. This can make testing API’s and failed network requests a drag.
Pivoting may require you to setup a new web portal, app or services and in turn tweak your back end technology. Make sure you know what you need before the lure of “buzzwords” and “shiny object syndrome” take hold, newer technology and ways of doing things are not always best.
I will assume you have an SSL Labs A+ server rating on your site and you want to secure your site some more. You will need to secure your site some more by enabling content headers for Content Security Policy and Public Key Pinning.
This guide will help you buy a new domain and SSL certificate from NameCheap, a self-managed Ubuntu 16.04 Server from Digital Ocean and configuring it with NGINX Web server, SSL etc.
How to get started in programming
How to build your first cross platform mobile app with corona
How to setup and use push notifications to modern web browsers with OneSignal
How to setup a new sandbox Corona iOS App with push notifications with OneSignal
Adding secure credit card payments to your website