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.

Twitter Polls - Polls embedded in tweets

StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.

Simple Poll - The easiest way to create polls in Slack

Histats - Start tracking your visitors in 1 minute!

Curious Polls - Answer a question once a day for the chance to win £100/$100