SEOMOZ is showing quite a lot of URL Errors like this: http://trampoliny.net.pl/akcesoria/pokrowiec-basic?frontend=1825cb1eea3af8ee6ee2d96617d32ff6
All these URL´s use the parameter "?frontend=". In webmaster tools we told google not to index this parameter.
Unfortunately at the moment we cannot set this parameter as "NOINDEX". We also dont want to use a robots.txt file.
How to get rid of the URLS in Seomoz?