
Description: SPFToolbox is an email delivery and inbox testing tool for email marketers. It allows you to validate and monitor email infrastructure to optimize deliverability. Features include inbox testing, blacklist monitoring, and email rendering.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: DNS Check is a free online tool that allows you to perform DNS lookup, ping, traceroute, whois and other network diagnostics functions to check the availability and health of websites.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API