How does Commtouch ensure accuracy of its URL filtering?
GlobalView URLF ensures that the categorizations provided per URL (up to 5) truly reflect the nature of the site. This necessitates advanced automatic algorithms as well as understanding and analysis of multi-layered and embedded URLS. GlobalView URLF also indexes IP addresses since a hostname may be identified by one or more names and IPs (aliases). GlobalView URLF provides highly accurate granular categorization of multi-category websites. This implies choosing the correct granularity on a per site basis. Some sites neatly fit into a single category with the exception of a particular “corner” of the site for example, the swimsuit pages of the otherwise sports-oriented Sports Illustrated site (which itself is found in the news oriented CNN). Web 2.0 environments such as blogs on the other hand may contain millions of URLs representing every possible Web category. GlobalView URLF also supports embedded URLs – these are a common feature of search, translation and content aggregation sit
