Both of my kids now are on iPads all the time, and I started to worry about them running into porn and malware online. Luckily, I found CloudFlare’s for Families product. It makes blocking that stuff at the DNS level as easy as changing two settings values on my router. It’s free, which is a requirement for me, because I could roll my own service with a Raspberry Pi, but I would rather not have another thing in the house to support.