Absolutely, here's a breakdown of your explanation about the different parts of a domain name:

Domain Name Structure:

• A domain name consists of three main parts: subdomain, domain, and top-level domain (TLD).
• These parts are separated by periods (dots).

Top-Level Domain (TLD):

• The TLD is the last part of a domain name, such as ".com" in "www.google.com".
• Defined TLDs are limited in number, including common ones like .com, .net, .edu, and country-specific ones like .de (Germany) or .cn (China).
• Due to internet growth, there are now vanity TLDs like .museum and .pizza.
• ICANN (Internet Corporation for Assigned Names and Numbers) administers and defines TLDs, alongside IANA (Internet Assigned Numbers Authority).

Domain:

• The domain is the second part of a domain name, like "google" in "www.google.com".
• It demarcates control from TLD name servers to authoritative name servers.
• Domains are registered and chosen by individuals or companies, but they must end with a predefined TLD.

Subdomain:

• The subdomain is the first part of a domain name, like "www" in "www.google.com".
• Sometimes called a hostname if assigned to only one host.
• Combined with domain and TLD, it forms a fully qualified domain name (FQDN).

Fully Qualified Domain Name (FQDN):

• An FQDN is a complete domain name, including subdomain, domain, and TLD.
• It's used to uniquely identify a specific location on the internet.