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.

Clicky - Clicky Web Analytics is a simple way to monitor, analyze, and react to your blog or web site's traffic in real time.

Burst Statistics - Privacy-Friendly Analytics for WordPress

Matomo - Matomo is an open-source web analytics platform

Open Web Analytics - Open Web Analytics - Web Analytics – Open Source Web Analytics Framework

Counter - Counting characters and words in the text layer.