About .com Domains

This article will explain the features and registration requirements of .com domains.

As one of the original top-level domains (TLDs), .com has become the most popular TLD on the internet, with more than 160 million domains registered in total. Short for ‘commercial’, this extension offers a short and simple destination that is widely understood by the majority of web users.

If you’re thinking of registering or transferring a .com domain with 123 Reg, be sure to check the main features and requirements that must be followed below.

Who can register .com domains?

Anyone can register a .com domain, regardless of their nationality or business, thanks to the international nature of this extension. The governing registry for .com domains is VeriSign.

Registration Requirements

There are some restrictions that you’ll need to follow when registering a .com domain, which are as follows:

  • Length: 3-63 characters.
  • Permitted Characters: letters (a-z), numbers (0-9) and hyphens.*
  • Unaccepted Characters: special characters (, & # or !).
  • Internationalised Domain Names (IDNs): not supported.

*You cannot use a hyphen for the 3rd or 4th character of your domain name.


Nameserver Requirements

  • Must use: 1-4 nameservers, defined in your account.
  • Can use: IPv4, IPv6, DNSSEC.


For information about our refund policy, please visit our Domain Refunds policy page.

Cancellation Requirements

For assistance with cancelling your .com domain, please contact our Support team.