As an MSP, we want to brand the PRTG web interface so that it represents our company towards our customers. As a minimum requirement, we need an officially supported way to customize the login page. Ideally, this supported scope would also allow basic customization of other key UI elements to match our corporate design.

Today, adjustments would be possible by modifying local HTML and CSS files, but this approach is not update safe and will very likely be overwritten by future PRTG updates. We also could not find a current, supported solution in the Knowledge Base. In addition, the comment in /public/local_login.htm references a KB article that is no longer available and explicitly describes this customization option as deprecated and unsupported.

Therefore, we would like to request a permanently supported and update safe branding feature, for example via configuration in the UI or through a clearly defined customization interface. This should at least allow controlling the login page logo, colors, background, and typography, and optionally a custom text such as a footer or disclaimer. It is important that required assets such as logos can be stored in an update safe manner and that no manual file overrides are needed.