Quality Settings let you adjust how traffic is counted. For example, you can exclude or discount traffic from specific countries, proxies, or JavaScript-disabled browsers.

Example: A trader sends a visitor who makes 10 clicks, all through a proxy. If ProxyDiscount is set to 20%, you count only 10 - 20% = 8 clicks for the trader.

For example, if you want to discount traffic from Russia (ru), evaluate by browser language using HTTP_ACCEPT_LANGUAGE:

Set: - Env. variable name = HTTP_ACCEPT_LANGUAGE - Value = ru - Discount % = 30 - Skimming = 20

Visitors with Russian language settings are counted at 30% discount. If a trader sends 10 clicks from a Russian visitor, you count it as 10 - 30% = 7 clicks. Also, 20% skimming applies to that traffic. (If skimming = 0, this parameter is ignored.)

More complex example
Surfer made 10 clicks
language – ru
all clicks through proxy
10 – 50% - 20% = only 3 clicks will be counted.

Skimming is a custom skimming value for specific conditions. For example: - Value = ru - Discount % = 30 - Skimming = 40

Visitors from Russia are discounted 30%, and 40% skimming applies (instead of your default).

Set Skimming to 101 to skip this parameter and use the value from &p= or Settings - CJSettings - Default Skimming.

Note that discounts are applied to clicks
For example   Value = ru  Discount % = 50
100 impressions came in and all with country ru - impressions will still be 100.
Suppose they clicked 100 times: 50 on url and 50 on trade.
The Hourly Clicks Url, Hourly Clicks Trade and Hourly Clicks Total fields will reflect real clicks, i.e. 50, 50 and 100
But Hourly Quality Url, Hourly Quality Trade and Hourly Quality Total will reflect with discounts applied, i.e. 25, 25 and 50
Revenue is calculated from Quality parameters - accordingly discounts affect revenue and as a result trader debt.