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.
Fluentd - Fluentd is a cross platform open source data collection solution originally developed at Treasure Data.
Matomo - Matomo is an open-source web analytics platform
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Clicky - Clicky Web Analytics is a simple way to monitor, analyze, and react to your blog or web site's traffic in real time.
Splunk - Splunk's operational intelligence platform helps unearth intelligent insights from machine data.