First, the software will block access to web sites with content deemed inappropriate for children by the software company. Each company's software works from a unique and highly guarded database of blocked sites and key words which are based selected on company criteria of what constitutes inapproprite materials. Adult users can select some or all of the categories to activate blocking of sites on those topics. Most parental control software programs include other types of options allowing users to customize Internet access to fit family needs and circumstances. For example, the software may allow parents to set the time of day or number of hours per week the Internet will be available to children.
Adults can also expand or subtract the list of blocked sites.
Some programs allow parents to create different levels of Internet access based on the varying ages of children in the family. With yet other programs, local applications, such as games, can also be restricted. Settings are password protected. There are various ways in which software can be purchased, and it is important to remember that new sites with the potential for inappropriate material are being added to the Internet each day. Some parental control programs can be obtained with a single purchase ranging from forty to fifty dollars and updating of blocked sites is included in the initial fee.