How are webmasters Masking their traffic rankings?

Recently, I’ve tried to check the traffic rankings of a few popular websites. It seems to me that many marketers are manipulating their rankings so that nobody can even get an estimate of how much traffic their sites are receiving?

It clearly appears to me that they are deliberately doing this to prevent competitors from gaining insight? Is this really happening, or is there something I’m missing?

For example: I have noticed that some traffic estimate sites, will estimate a popular web site as only having 137 daily visitors. But, I’m absolutely positive, that the web sites daily traffic, measures in the 1000’s.

Is it possible for a webmaster to sabotage their web site traffic rankings at various traffic estimate sites?

trafficestimate, statsbrain

Can someone please explain?

And, if they are doing this, where can I find out how to do it as well?

Thanks in advance.

J. Harris - jharris387 at gmail

P.S. Oh, to be very clear, my question is “NOT” about how webmasters are trying to improve their rankings

 

This is because it is not easy to estimate other websites traffic. Estimation is always hard.

 

It's quite easy to improve the traffic rank, anyway consider that the traffic ranking sites have only a little % of the sites monitored and only an even more little % of traffic correctly estimated.

 

It's entirely possible. But can you tell me which traffic ranking you are referring to? Alexa?