Git Voch,I don't really have time to go through all pros and cons of all filters. The only one I really find works well is Techloq, however they are Windows based only. On Android there isn't such great options.Without sharing exactly all details on the fall, videos weren't the issue. The good filters have multiple levels of protection. First it has a database of sites to block, then it scans the content of the page for offensive keywords to consider it for blocking, thirdly some also optionally scan the images and apply skin tone filtering. Now imagine a zip file named ploni almoni hosted on Hebrew books site. A filter would let that through, since the site is ok, the text on the page is ok, and there is no images to scan. My loophole involved such a scenario.I'm liking pluckeye since it allows me to write rules that zip files from certain sites should be blocked from downloading, etc... Still need to check out a screenshot monitor.Hatzlacha