Internet access has become critical to sustaining an enterprise???s daily business activities. The D-Link NetDefend Web Content Filtering (WCF) service allows enterprises to apply more granular control on web surfing according to its own policy. Global index servers maintain databases of millions of URLs and collect real-time website information about the latest sites in order to keep the data as current as possible. Categories of recently visited websites are cached locally in each UTM firewall to maximize performance for subsequent requests. Because the D-Link WCF service is priced per firewall instead of per user, one subscription can provide web surfing control for an entire organization.