> For the complete documentation index, see [llms.txt](https://docs.arksspr.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.arksspr.com/master/administration/license-management/online-license.md).

# Online License

**Online Licensing**

The ARK2FA software operates by performing an online license check from license.arksoft.com.tr. For the system to perform the license check, access to this address must be provided from the server via TCP 80/TCP 443 ports.

The online license is the recommended licensing model for systems with internet access.