DevDojo - Dev tools and resources for building awesome stuff

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.

UX Recipe - Checklist to discover your next UX project tools/techniques

Optimizely - A/B testing you'll actually use.

UXsniff - Track user behavior on your website and improve conversions with UXsniff: the user experience watchdog that looks out for you.

Smartlook - Qualitative analytics for websites and mobile apps Start understanding the 'whys' of your users' behaviors with clear, visual insights. With session recordings and event tracking, you get the complete picture.