
Description: DeadURL.com is a free online tool that allows you to check if a URL or website is down, deleted, expired or broken. It analyzes URLs and reports issues like 404 errors and domain expirations.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Cached Pages is a browser extension that allows users to save web pages locally to view them offline later. It keeps a cache of pages you visit so you can access them when internet connectivity is limited.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API