Complete Guide to Understanding Second-Level and Subdomains

When running a website or managing a blog, one of the key concepts you must understand is the domain structure. Especially, second-level domains and subdomains are critical terms that everyone from beginners to experts should clearly distinguish for efficient site design and management. This post explains their differences, characteristics, and practical uses step by step. A domain is essentially the address on the internet. For example, if you have the address ‘example.com,’ the entire thing is called the domain, where ‘example’ is the second-level domain and ‘.com’ is the top-level domain (TLD). Each part plays a distinct role within the internet address system, and understanding them properly can give you a huge advantage in SEO optimization and brand management.     What is a Second-Level Domain? Second-level domains refer to the name right before the top-level domain, usually representing the brand or website name. For example, in ‘naver.co.kr...