SWURL is a cloud based system for adding URLs to a Smoothwall system remotely (SmoothWallURL). This was the first iteration of allowing end users to add custom allows and blocks directly to a cluster, without having to go via support interactions.
SWURL still works but no new setups will be using it. Customers using SWURL will be migrated, in time, to using the user portal system instead.
The user portal has replaced the SWURL functionality and added a lot of new features, like being able to run both safeguarding and standard web filter reports. The user portal is Active directory integrated as well so no need for a separate username and password for users accessing the portal.