With the exception of .MAC Lockdown works on almost every web host. The problem is there are a few hosts that have problems: before you buy Lockdown please download a version and try it. The only limitation of Lockdown without a registration code is you can't save your work to a Rapidweaver file.

To try it first download, install it and create a simple web page with only a lockdown page.

Publish the page but don't save it (Rapidweaver will ask to save it, just say no) and then visit it. If it says that Lockdown worked and you get the username/password prompt then you are good to go!

If it asks you to try the alternate instructions then try those and verify it works (again, don't try to save your Rapidweaver file).

Please, i beg of you. Try using Lockdown BEFORE you purchase it. Although it seems to work with about 98% of all non .mac web hosts out there it's really sad when someone purchases it and then discovers it doesn't work.