The IP address for external connections to your WordPress site can be found in the MyKinsta dashboard under your sites “Info” tab. It is located at the top right-hand corner.
This is the IP address that other servers see when your site connects to another server. For example, if your site connects to a third-party payment processor like PayPal, you might need to provide PayPal with the external IP address so that they can whitelist the IP on their end.
The IP address for external connections is different from your Site IP address. Your Site IP address is the IP address that your domain should be pointed to.