Lookup.icann.org is an online tool provided by the Internet Corporation for Assigned Names and Numbers (ICANN) that offers detailed information about domain name registration and availability.
The Google Admin Toolbox is a simple, web-based tool for performing DNS lookups, allowing users to easily enter a domain name and view detailed DNS records.
Google Keyword Planner is a free tool offered by Google Ads that helps users discover keywords relevant to their business and see estimates on the searches they receive and the cost to target them.