Different filtering schemes can be set up for different times of day. Over 4.5 million web pages are contained in the block-site categories. All sites that are blocked are reviewed by N2H2 staff before being added to the block lists. Updates to the block lists occur daily, automatically. Technical support and system monitoring is available 24 hours a day.
Adults can override the filters using passwords.
Administrators get complete statistics on their network s Internet use on demand. Upgrades to the software are automatic. These features allow communities to customize their filtering to fit their needs. It is probable that none of our customers configure their systems the same. It is notable for the legislation being considered that some schools choose not to install the filter override option.