A top-level domain (TLD) is the part of a domain name after the dot. This represents the highest level of the domain. For example, the top-level domain of the domain www.ionos.com is .com.

There are two types of top-level domains:

  • Country-specific top-level domains: (e.g. .us, .ca, or .uk)
  • Generic top-level domains (e.g. .net, .com, .org, .info)

The requirements for country-specific top-level domains vary from country to country. For the French top-level domain .fr, for example, the domain owner must have their address or company address in France.