A domain check helps to identify whether or not a particular domain name is available to register. A Whois lookup gives you access to further limited information regarding a registered domain. Should your requested domain name still be available, you can use both the Whois service, as well as carrying out a domain check in order to easily register your desired domain name with IONOS. Furthermore, we recommend suitable domain alternatives in case a particular domain name is registered already. Regardless of whether you use our Whois lookup or domain check tools, our main goal is to offer you the best support possible on your way to your domain name of choice.