
Description: NxFilter is a free web filtering software that allows administrators to block access to inappropriate or harmful websites. It can filter content based on categories, keywords, domains, and more. NxFilter works by intercepting web requests and determining whether they should be allowed or blocked.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Verisign Public DNS is a free DNS resolution service that offers improved security, faster speeds, and greater reliability than standard ISP DNS servers. It is powered by Verisign, an industry leader in DNS infrastructure.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API