Register .com domains — the world's most trusted extension

When the Domain Name System was implemented, .com was one of the first generic top level domains (gTLDs) created, and has since become the most popular. The .com domain meaning is simple: originally the .com suffix stood for "commercial", and was used by and to identify businesses online. The idea behind this was that TLDs would be used to categorize websites for users; this can also be seen in other purpose-designed TLDs such as .gov (government) .edu (education) and .org (organization), all of which are still in use today.

However, as the internet became a global phenomenon, the .com domain meaning gradually lost its commercial significance and became the standard domain used by individuals and organizations everywhere — including many government departments and educational facilities. As a result, it has gained a reputation as one of the most respectable and trustworthy TLDs available. So, while the .com domain definition may no longer imply a commercial entity, it does significantly enhance the profile of a website.

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.

More than 100 million registrations worldwide speaks for itself – clearly, the .com domain is the most commonly used domain extension worldwide. In its early stages, .com was supposed to be used for commercial purposes, since it is an abbreviation for the word "commerce". Today, however, it is used for all purposes – personal, professional and commercial. One of the prime reasons for registering another .com domain is if you are expanding your business.

If, for example, your company is already successful in the US, and you're looking to expand it to Mexico, you could register a second .com.mx domain to cater exclusively for the Mexican .com.mx market. Additionally, many domain traders and businesses extend their domain portfolio in order to protect their brand online. They then turn not only to the classic domain endings like .com, .org, .net or .info, but they also use new domain extensions like .online, .shop or .tech.