Swift Social - All-in-One Social Media Growth and Management Tool

BuiltWith - Find out the technology behind websites

Synthesio - Synthesio is a social intelligence tool or a marketing software that is specially made for the purpose of social media monitoring and social analytics.

Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.

LeadsRX - LeadsRX is a marketing attribution software that gives marketers insights into which advertising campaigns result in conversions.

What CMS - WhatCMS.org looks at a variety of factors within a webpage to determine what CMS a website is using.