A top-level domain is the last part of a domain name. In englishclub.com, .com is the top-level domain. In englishclub.org.uk, .uk is the top-level domain.
What are the generic top-level domains?
The multi-letter top-level domains (like .com, .net, .org ) are called generic top-level domains (gTLDs).
- .aero Air-transport industry
.edu US EDUcational institutions
.gov US GOVernment
.int Official INTernational organizations
.mil US MILitary