Some subdomains are rated differently by the Blue Coat WebFilter (BCWF) service than their parent top-level domains. This article describes how and when the BCWF service makes the distinction to rate each domain and subdomain appropriately.
When the Blue Coat WebFilter (BCWF) service analyzes a sub-domain, (subdomain1.example.org) it typically assigns the same category as the top-level domain, (example.org). However, if the subdomain has significantly unique content, it will be rated differently than the top-level domain.
BCWF uses a method called Rating Types to determine how to classify a URLS and their subsequent directories. Whenever it assigns a rating to the URL, the BCWF service considers four rating elements: