The client methodically buys links on a monthly basis throughout the 1 year, each month 20 links from PBNs (let us remind you that the effectiveness of such links is much better than guest posts, because their cost is significantly lower, but the quality of their placement and impact on google is very noticeable).
During this period, the site is growing quite steadily in all positions.
The number of keywords is also growing along with the traffic.
This is how the cost of website traffic has increased.
The price of such link building.
The client buys 20 articles on our sites each month. So, the price is: 20 * 50$ = 1000$
The price for one year of such promotion is 12000$.