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.

IP-Toolbox.com - IP-Toolbox.com is the best site for quick and easy viewing of your public IP address and other related information.

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.

GRC Port Scan - GRC Internet Security Port Scanner. Tests for open ports on your external IP address.

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

TrueIP - TrueIP is a small program that runs in the system tray, monitoring your IP address(es).