domain visit

I have parked my names on Sedo, Afternic and Dan. On Sedo I can see daily visit to my sales page. On Dan I get very few visit on my domains. On Afternic I don't see or see very very less visit on my domains. Why this is happening? Am I the only one who see this ? Pls guide...

I have parked my names on Sedo, Afternic and Dan. On Sedo I can see daily visit to my sales page. On Dan I get very few visit on my domains. On Afternic I don't see or see very very less visit on my domains. Why this is happening? Am I the only one who see this ? Pls guide...