We'll create fresh WordPress site with IP Address Widget in Footer installed. You have 20 minutes to test the plugin after that site we'll be deleted.
This plugin allows you to show visitor public IP Address in the footer section. This plugin calls [ipaddress.tech widget] (https://ipaddress.tech/widgets) which is basically an image (what-is-my-ip-address.png). When browser access this image URL, It detects its public IP Address and generate the image dynamically. You can change widget image background from admin setting area.