With the .com extension being the most popular top level domain worldwide, it's no wonder that domain availability is becoming more and more limited. Representing credibility, professionalism, and a global scope, an increasing amount of people are turning to .com for all things professional and personal. Once you've thought of the perfect top level domain for you or your business, one that is guaranteed to leave a good first impression, the next step is to ensure that it's not already taken. Checking for .com domain availability is an easy process with IONOS. Simply check your .com domain availability with our free and easy tool. All you need to do is type in your desired domain name, and the domain checker will identify whether or not it's available. If your desired domain name is already taken, you will be provided with a range of viable alternatives.