Which domain extension carries no restrictions?

The domain extension .com is commonly associated with commercial entities and is one of the most recognizable and widely used domain extensions on the internet. It is designated for general use, meaning that anyone can register a .com domain without any specific restrictions. This lack of restrictions has contributed to its popularity and has resulted in millions of registered domains under this extension.

In contrast, other domain extensions like .edu and .gov have specific eligibility criteria. For instance, .edu is reserved for accredited post-secondary educational institutions in the United States, while .gov is strictly used by government entities at various levels. The .pro extension is intended for licensed professionals, which necessitates the verification of credentials before registration. Therefore, .com stands out as the only extension among the options listed that allows unrestricted registration, making it accessible to individuals and organizations of all types.