What do I use a subdomain for?

While a subdomain is part of a main website, search engines treat it as a separate entity. Many businesses and individuals use subdomains for various organizational purposes, including:

1. Creating region-specific or language-specific websites – Instead of maintaining a complex multilingual website, separate subdomains can serve different markets (e.g., fr.yoursite.me for French content).
2. Separating a blog or e-commerce store from the main website – This is useful when using a different CMS, requiring a distinct design, or when the content significantly differs from the primary site (e.g., shop.yoursite.me or blog.yoursite.me).
3. Creating a dedicated mobile site – Instead of using responsive design, some businesses opt for an adaptive approach where a subdomain (e.g., m.yoursite.me) delivers a customized experience for mobile users.
4. Managing a large number of user-generated profiles – If you allow users to create custom subdomains (e.g., username.yoursite.me), be aware that if one subdomain is flagged for phishing, the entire root domain and other subdomains may also be affected.

For more on subdomains, read our What Are Subdomains and How Do They Affect Search Engine Optimization blog post.