The cost of a backlink for the first year is calculated using the following formula:

F = (D + $635) / N

where:**F** – is the link price**D** – is the price for which the domain was bought (open public information)**$635** – is the cost of maintaining the site for the first year**$500** – is the cost of maintaining the site for the second year**N** – is the number of clients

The slot renewal cost for the following years (“R”) is calculated according to the following formula:

R = $500 / N

Important note: if any of the customers do not renew their slot(s) in the future, the slot renewal cost will not be increased for other customers.

Note that additional fees can be charged by third party service providers and payment gateways.