Due to the various types of dns-based sources they have to be classified
somehow useful for both application and users.
Zone-Type contains one or more of those flags:
0x011IS_DNSsource indexed by ip-address
0x022IS_RHSsource indexed by host-name
0x044IS_RES1reserved1
0x088IS_METAnot for blocking/whitelisting
0x1016IS_RES2reserved2
0x2032IS_WLwhitelist, reverse results
0x4064IS_REQmandatory, error on miss
0x80128IS_NOFRAMEdont open homepage in popup
See also: