
Description: Nslookup is a network administration command-line tool for querying DNS servers to obtain domain name or IP address mapping or for troubleshooting DNS issues. It allows administrators to test and diagnose DNS problems and verify DNS configurations and records.
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