Understanding the first-level domain name, the second-level domain name, and the second-level directory

First-level domain names, second-level domain names and secondary directories are often encountered in SEO and are often used, so they must be recognized and operated.

A first-level domain name, also known as top-level domain name:

Such as: seogroupbuy.co

Secondary domain:

Like: seogb.blogspot.com: bestseogbtools.blogspot.com

Secondary directory:

Such as: seogroupbuy.co/blog/ : seogroupbuy.co/ahrefs-group-buy/

From the perspective of the website optimization

First-level domain name> Second-level domain name> Secondary directory

Generally, a first-level domain name is used as a brand station, and the corresponding forum adopts a second-level domain name. The content in the second-level directory is used to enrich the content under the primary domain name, and an effective method for improving the weight of the primary domain name is optimized.
Sponsored by : https://seogroupbuy.co