Free orbit is a term from orbital dynamics — the science of orbiting bodies in space. A free orbit is a stable orbit that doesn't require the additional input of energy to maintain the orbit.
When you launch a rocket into space, once it has reached a free orbit, you don't have to keep burning the rocket engines to maintain the orbit.
When you launch a new website using our tools, once it has been built, you don't have to keep paying a service bureau (or us) to maintain the website. You can maintain it yourself with our easy-to-use Content Management Tools.