About WEB URL filtering technology audit function, which of the following description is correct?

URL audit function is used to record the user's HTTP Internet behavior as the basis for the audit.

The user can configure the web type to be audited, WEB types to distinguish with file extensions, including html, jsp, aspx, etc.

can audit user HTTP access in the specific content of the Post, as a user Internet censorship

internal users access to the specified type of WEB resource, the firewall will be logged and sent to log server.