If I understand it well it's in reverse, as description on the info symbol.
In "URL ADDRESS MANAGEMENT"
Blocked - You can specify which addresses will be excluded from protocol content filtering by using a URL address/mask list.
Allowed - You can specify for which addresses protocol content filtering will be allowed by using a URL address/mask
So I wanna exclude content filtering for that URL so I put it to the blocked address list. Or am I wrong ?