Due to interference of direct avast! Web Shield blocking of code detected, Dr Web's url checker scan and several others cannot connect and won't give scan results.
polonus
Well, there's a workaround for that. Set up more than one system running other major a/v's that don't block or detect what avast! does, and you can see what scan results you're not seeing. Think that's a good way to do it. Of course, you might have to reload your os more often...