BuiltWith - Find out the technology behind websites

GoLogin - Easily switch between browser profiles to manage user accounts on websites without blocks, suspensions and verifications.

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

Multilogin - Connect to websites as a multitude of different users

WhatRuns - Extension that helps you identify technologies used on any website at the click of a button.

AdsPower - AdsPower is an antidetect browser that eliminates any chances of exposing your real browser fingerprints by changing them in seperated environments, thus protecting your privacy and anonymity.