BuiltWith - Find out the technology behind websites
genei.io - AI-generated summaries for any article or research paper.
Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
Lumin PDF - Lumin is a fast, easy-to-use, and secure PDF viewer, editor, and sharer that lets you view and fill in PDF forms.
What CMS - WhatCMS.org looks at a variety of factors within a webpage to determine what CMS a website is using.
KDAN Mobile PDF Reader - PDF Reader is the one app you can rely on when you need a portable solution to work with PDFs.