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A subdomain lets you organize different parts of your online presence under one domain, without needing to register anything new.
What a Subdomain Is
A subdomain is a prefix added before your main domain, like blog.yourdomain.com or shop.yourdomain.com — technically a separate address that can host its own content, entirely distinct from your main site.
Common Use Cases
Separating a blog from your main site, hosting a staging environment for testing, running a customer portal, or pointing a subdomain to a third-party service like a help desk platform.
Subdomains vs Subfolders
A subfolder (yourdomain.com/blog) shares the same site and typically the same SEO authority as your main domain. A subdomain is treated more like a separate site by search engines — worth considering if SEO consolidation matters to you.
Creating a Subdomain in Plesk
Log in to Plesk, go to Websites & Domains, click Add Subdomain, choose a name, and select where its files should live. It's ready to use within minutes, no separate DNS record needed since it's created automatically.
No Extra Cost
Subdomains don't require registering a new domain — they're included as part of managing your existing domain and typically don't count against your hosting plan's website limit.
