Domain Mapping » Map a Subdomain
domains, subdirectory, subdomain
Subdomains
You can map a subdomain to your WordPress.com blog for 9.97 credits ($9.97) per year. This is ideal for web administrators who already have a functioning website at a primary domain, example.com, and wish to use blog.example.com as the official domain/URL for their WordPress.com-powered blog. Note that you cannot map the “www” subdomain because WordPress.com removes the “www” from all URLs.
- Add a CNAME record through the registrar where you purchased your domain or through your DNS provider. You should NOT change your Name Server information if you wish to only map a subdomain. The CNAME should look something like the following (please note the fullstop character at the end of each domain name):
subdomain.yourdomain.com. IN CNAME yourblog.wordpress.com.
- Once the CNAME record has been added and verified, go to Settings -> Domains and add the subdomain to your blog. If everything is configured correctly, you will be prompted to purchase the required credits via PayPal and complete the upgrade/mapping process.

- After you have made your purchase, go back to Settings -> Domains, select the radio button next to your custom domain, and click the Update Primary Domain button.

Subdirectories
Sorry, but you are not able to map a subdirectory (e.g. example.com/blog) to your WordPress.com blog.
Additional Information
See Map an Existing Domain to learn how to map an entire domain such as example.com to your WordPress.com blog.
Last modified: July 3, 2009
Help us improve:
We're always looking to improve our documentation. If this page didn't answer your question or left you wanting more, let us know! We love hearing your feedback. For support, please use the forums or contact support form. Thanks!
