These Measures to prevent your kids from stumbling upon adult sites, it is your responsibility to do so. we hold no responsibility with results showing on any search engines to links. as the site is labels with Adult meta tags and should be blocked by your provider upon request or personnel firewalls.

Once your child has been added to your family with a Microsoft account, you'll be able to set up appropriate website and app and game restrictions for their age, set PC time limits, and review their recent activity. Their settings will apply to any Windows 10 device that they sign in to. https://account.microsoft.com/family

App Stores:

Both Google Play store and Apple app stores are already kind of kids-friendly as they do not allow any porn-related app. But you might want to control app installs anyway : http://www.techradar.com/news/mobile-computing/tablets/how-to-make-android-child-friendly-1045708

Blocking through ISP:

Your Internet Service Provider likely has solutions to filter your internet connection at their level. Contact them to find out. Note that this will block xxxstub.com even for you.