Yes, domain names can contain numbers. Domain names are string representations of IP addresses, and they are used to identify and locate websites and other online resources.
Domain names consist of a series of labels separated by dots (e.g. example.com). Each label can contain letters, numbers, or hyphens. However, domain names cannot start or end with a hyphen. This allows for domain names to be easily readable and memorable for people, while still allowing for the use of numbers within the name.
For example, some common domain names that contain numbers include "google.com", "123reg.co.uk", and "example123.com".
