Web Content Filtering Features

Category Server	The Category Server database is a human verified list of over 60,000,000 Web sites categorised in over 70 categories and in multiple languages (English, Chinese, Dutch, French, German, Japanese, Portuguese, Spanish, Danish, Finnish, Italian, Korean, Norwegian, Swedish, Russian, Hungarian). The Category Server is updated on a daily basis and provides extremely fast verification of known Web sites. Policies can be created to "allow" or "deny" different categories, for different users and machines.
Content Classifier	The Content Classifier module consists of a collection of advanced content rating and lexical analysis techniques used to understand the context of Web pages in real-time and in multiple languages. The Content Classifier rates and categorises Internet content into appropriate and inappropriate categories using a range of tools, techniques and methods to produce maximum accuracy in minimum time.
HTTPS (SSL Enabled) Intercept	The HTTPS Intercept mode allows CensorNet to filter encrypted (SSL) web content by intercepting the transmission between the client browser and the remote web server. This powerful feature ensures that CensorNet can protect against previously hidden and anonymous threats.
Anonymous Proxy Detection	The Anonymous Proxy real-time rater is designed to detect zero-hour (or unclassified) anonymous proxy sites, or sites containing links to anonymisers. Combined with the database of known sites, which are updated daily, this provides a powerful and accurate defense against anonymous proxies.
Active Image Control	The Active Image Control module attempts to rate image content (JPEG/JPG, BMP, GIF, TIF, TGA, WMF, PNG, MNG, PGX, PNM, RAS) in ‘real time’ as the content passes through the proxy. The module adopts many complex techniques, such as edge detection, colour tones, curvature and body size algorithms to produce a probability rating as to whether the image is pornographic.
Custom URL Module	The Custom URL Module allows the administrator to create and manage groups of Web sites that are trusted or always denied. The categories from the Custom URL module that are active within a policy will always take precedence over any other filtering rules. This provides the administrator with the necessary control to maintain a subjective list of trusted and blocked sites.
File Upload	Prevent uploading of confidential documents to online storage or free webmail sites.
File Extension	The File Extension module allows the administrator to specify a list of file extensions to block.
MIME Type	The MIME-Type module allows the administrator to specify a list of content types to block.
Google & Yahoo! Safe Search	The Safe Search module forces anyone visiting Google or Yahoo! to have "Safe Search" enforced regardless of whether the user disables it in their account profile.
HTTP Anti-Virus	The optional HTTP Anti-Virus module uses Grisoft’s powerful AVG anti-virus engine to scan content on-the-fly as it is downloaded through the proxy. Other anti-virus engines are supported – please contact us for further information.

Policy Manager	The Policy Manager allows you to easily manage filtering policies for your users and workstations. A policy consists of a set of rules and the rules correspond to the Content Filtering modules described. You can create any number of rule combinations and policies.
Open Policy	The Open Policy mode allows completely unfiltered Internet access to the specified user, workstation or group.
Closed Policy	The Closed Policy mode blocks all Internet access for the specified user, workstation or group.
Restricted Policy	The Restricted Policy limits the specified user, workstation or group to an administrator defined list of trusted Web sites.
Filtered Policy	The Filtered Policy allows the administrator to define which Content Filtering modules, and their respective filtering options, are active for a specific user, workstation or group.
Advisory Policy	Same as Filtered Policy except the user may Override any blocked requests.
Policy Scheduler	The Policy Scheduler allows the administrator to quickly and easily assign policies to users, workstations or groups which are active at different times of the day or week.

User Manager	The User Manager allows the administrator to quickly add, remove or update user objects to the CensorNet system. Users can be imported from 6 authentication sources, including Microsoft Active Directory, Novell e-Directory and SAMBA. Any unrecognised users attempting to use the CensorNet proxy will simply be filtered using the Default Policy.
Bandwidth Limiting	The Bandwidth Limiting feature allows you to allocate a slice of bandwidth evenly for all users in a particular group.
Workstation Manager	The User Manager allows the administrator to quickly add, remove or update workstation objects to the CensorNet system. Workstations can be imported automatically using the "Probe LAN" tool or from a CSV file format. Any unrecognised workstations attempting to use the CensorNet proxy will simply be filtered using the Default Policy.
Suspend User	The Suspend User option allows the administrator to prevent a user from accessing the Internet temporarily.
Request Unblock	The Request Unblock feature allows your users to request that a page is unblocked if they feel it has been incorrectly blocked by CensorNet. A digest of unblock requests can be sent to the administrator by e-mail for review.

Visits Report	The Visits report will show the exact pages and objects visited by a particular user or machine between a specific date/time range. The results can be expanded to show each individual URL visited and whether the request was allowed/denied and its classification.
Report Builder	The Report Builder allows the administrator to build customised reports based on the information collected by CensorNet. Any number of reports can be created based on different conditions, for example time/date, username, workstation, URL, filter module, violation and so forth.
Top 20 Reports	The Top 20 Reports provide a snapshot of useful information for the administrator, for example the Top 20 violating users/workstation, Top 20 most accessed sites and so forth.
Top Tables	The Top Tables Reports provide a 30 day overview of the most popular Web sites, most active users/workstations, most violating users/workstations providing the administrator with a birds eye view of their Internet usage.
Who's Browsing	The Who's Browsing report shows an instant snapshot of the users and workstations accessing the Internet through the CensorNet proxy.
PDF/CSV Reports	Export report results and snapshots to Adobe PDF or CSV format.
Crystal Reports	Access the CensorNet database via ODBC and use the power of Crystal Reports to generate custom reports and mine data held by CensorNet. Free ODBC driver available.
Archive Manager	On very busy networks CensorNet can quickly collect gigabytes of information. The Archive Manager allows the administrator to move old data to an archive to improve performance. Archives can also be included in the reports created using the Report Builder.

Web Control Panel	The CensorNet system is administered through an easy-to-use Web-based Control Panel, accessible using a standard Web browser (such as Internet Explorer or Mozilla Firefox/Netscape).
User Authentication	The CensorNet Proxy server can operate with or without User Authentication. CensorNet supports Microsoft Windows NT, Microsoft Active Directory, Novell e-Directory, LDAP, SAMBA and internal authentication sources. With User Authentication turned on, users will be required to log-in before accessing the Web.
Active Directory Synchronisation	Quickly and easily replicate your Active Directory OU groups within CensorNet and apply filtering policies.
Transparent Authentication	The CensorNet Proxy server supports NTLM allowing for transparent User Authentication on Microsoft Windows and SAMBA networks.
Workstation Authentication	The CensorNet Proxy server can authenticate workstations based on IP address or MAC (physical) address.
Web Cache	The administrator can specify the size of the on-disk Web cache, which is used to improve the performance of the proxy server.
Parent Proxy / Cache	The administrator can specify a parent proxy or parent cache, which will force CensorNet to pass requests upstream.
Backup / Restore	The administrator can Backup and Restore the CensorNet system easily using the tools provided.