Do not bet on rf Requests. Remember That The Promotion of Several Acs and the Lf Queries Can Bring You Target Traffic, But At the Same Time Promotion Out Much Cheaper. In Addition, IF your site Loses Several Pctions on the Rf Request, The Site Will Completely Lose Visitors, And IF a Similar Sitout Occuras with 1-2 ACS OR LF QURIES, PROBLEMS Will Be an Order of Magnitude Less.