IP Guide - Look up IP addresses, networks, and ASNs

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.

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

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.

ShowIP - ShowIP displays the IP address(es) of the current page in the status bar.

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