Inkvite - The social app to inspire your creative writing
BuiltWith - Find out the technology behind websites
Matomo - Matomo is an open-source web analytics platform
Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
ilys - ilys trains your creative-mindto experience pure writing flow.
What CMS - WhatCMS.org looks at a variety of factors within a webpage to determine what CMS a website is using.