set undetectable links?

Hey Guys,

I was wondering if it is possible to set a link on a site, which can not be seen by the backlink tools. When you have a website, where no one should be able to see that a link is in the article (at elast not when using tools) and you remove it from the article once it has served his purpose. It should not be visible in historical analytics.

Are there ways for that?

Cheers