Glossary: Page Impressions (PI) Search-Engine-Marketing Search-Engine-Optimization Affiliate-Systems Price Comparison-Linking Lottery Email-Marketing Controlling/Tracking Cost per Action (CPA) Cost per Click (CPC) Cost per Sale (CPS) CPL CPM CPO CR CTR Keyword Landing-Page (Page-)Impressions Performance-Marketing PPC Paid Inclusion ROI TKP Spider, Robots Tracking This means the number of called websites. Together with the number of visitors it can be found out how many pages eacht visitor called up in average. The higher this number is, the more interesting is the content of your pages.   Why we?   Glossary   Become Partner   Method