Joshmc - 12:10 am on Oct 12, 2011 (gmt 0)

Hmm, ok that is interesting, I assumed that it would be retroactive. The parameter i am trying to remove is from dynamic urls that were created with a index problem we had a year ago. They have been fixed so that it cant happen however the urls are still valid. It would be almost impossible to add a disallow to this page because they are dynamic, is there a better way to do it? Can you disallow a parameter in robots.txt?

Thanks for all of the great info!