Broadband ProviderMost providers have some sort of parental control that can be enabled by logging into your account online. This is the simplest and most effective way of protecting your family as it covers all devices in your home that use the internet.
BT Internet Safety
If your provider doesn't have parental controls then you can use the following techniques:
Safe BrowsingMetaCert is an add-on to Chrome, Firefox, Android and iOS that blocks inappropriate websites. Not available for Internet Explorer or Safari.
Add to Chrome
Add to Firefox
Youtube Restricted ModeRestricted Mode is an opt-in setting available on the computer and mobile site that helps screen out potentially objectionable content that you may prefer not to see or don't want others in your family to stumble across while enjoying YouTube. You can think of this as a parental control setting for YouTube. Make sure that Restricted Mode is locked which requires a Google Account.
Click to Setup Restricted Mode
Browser History & CTRL-HWeb browser history is the list of web sites that have been visited recently. It allows you to see which websites your family have been looking at. In most browsers the history can be accessed by pressing the CTRL key and the 'H' key together.
Internet ExplorerClick on the Favorites "Star" icon and move to the "History" tab. By default the web address in the list will be sorted by date but you can change this by selecting the appropriate option from the drop down.
Google ChromeClick on the Chrome Menu or the "Wrench" icon and choose "History". The list of all web pages you've visited will be displayed in a new tab window with a search field.