whatismyip.cc - External IP Address lookup tool with option to scan the external IP address.

Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.

What is My IP Address - Open Source Website To Get Your IPs Address By WebRTC

Heap - Analytics for web and iOS. Heap automatically captures every user action in your app and lets you measure it all. Clicks, taps, swipes, form submissions, page views, and more.

ipinfo.io - Simple IP address information.

Yandex.Metrica - A free tool for evaluating site traffic and analyzing user behavior