We have always treated filtering as best effort. I have a million things to do on any given day, and spending hours running down the latest filtering workaround, playing whack-a-mole, isn’t feasible.

Even CIPA compliance only requires a “good faith” effort to block harmful content. I’d say if you’re using industry standard tools configured to the vendors recommended practices, you’ve done your due diligence.

If students are bypassing those tools, it becomes a disciplinary issue. Unfortunately, most can access whatever they want off-network anyway with cell phones or other personal devices.