Overview

Domain names are structured hierarchically from right to left, with each component separated by a dot. Understanding this structure helps users navigate and configure web properties safely.

Hierarchy Breakdown

• Top-Level Domain (TLD): The furthest segment to the right (e.g., .com, .org, .co.uk). It designates the broad category or geographical jurisdiction of the address.
• Second-Level Domain (SLD): The unique text directly to the left of the TLD (e.g., "example" in example.com). This is chosen by the registrant to represent their specific brand or project.
• Subdomain: An optional prefix added further to the left (e.g., shop.example.com or blog.example.com) used to isolate and organize different operational sections of a web application.