Service subdomains provide access to cPanel & WHM interfaces and services. You can use them with secure and non-secure ports. When you create accounts or domains, the system also creates their service subdomains.
You can access interfaces and services via the port or the service subdomain. The port has a faster server response time. However, the service subdomain allows access from behind a firewall restricting, for example, port
80 and port
- In cPanel & WHM version 74 and earlier, service subdomains were proxy subdomains.
- In cPanel & WHM version 62, Domain TLS enables SNI by default for service subdomains' SSL certificates.
For cPanel & WHM version 76 and later, enable the Service subdomains setting and the Service subdomain creation setting.
- For cPanel & WHM version 74 and earlier, enable the Proxy subdomains setting and the Proxy Subdomain Creation setting.
- You must enable additional settings for AutoConfig and Autodiscover. More settings let you change how service subdomains work.
- For more information about these settings, read our Tweak Settings - Domains documentation.
- For more information about
autoconfig, read our Thunderbird and Outlook
- You can use the
/usr/local/cpanel/servicedomainsscript or the /
usr/local/cpanel/proxydomainsscripts to create DNS records for service subdomains.
Access cPanel & WHM interfaces
Users can access cPanel, WHM, and Webmail using the following service subdomains:
|Interface||Service subdomain||Secure port||Non-secure port|
SSL only secures the
Access cPanel & WHM services
You can access cPanel & WHM services using the following service subdomains:
|Service||Service subdomain||Secure port||Non-secure port|
For more information about ports on your cPanel & WHM server, read our How to Configure Your Firewall for cPanel Services documentation.