Third-level domains
Third-level domains in the DNS system normally come after second-level domains. The subdomain is a common name for them, and they may be found to the left of SLD. Third-level domains are frequently used by larger businesses as identifiers to differentiate between distinct of a website. The most popular third-level domain is typically “www”. In the event that a business does make use of numerous third-level domains, those often point to a particular server inside the business.
