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For those that are worried about duplicate content issues and getting penalized for them this information might serve useful to you. There is a thread on SEW forums detailing a situation where one of the members had several pages 302 redirected to pages on his site. This caused problems for Google. Fathom, a member on SEW forums posts information about duplicate penalty timeframes for offenses based on first, second and third time offenses. He mentions that:
A dup penalty timespan is based on your offense.1st Offense: 30 days
2nd Offense: 60 days
3rd Offense: 90 days
So 'if' [for example] you had a 1st Offense and change something and Google detected that and then later found other dup content - you would go to a 2nd Offense timespan.
I emailed fathom to get some verification on where he obtained this information. He posted back in the forums that Matt Cutts of Google at a recent WMW PubCon mentioned it.
Comments:
DazzlinDonna
01/13/2005 04:46 am
The penalty time period is fine for those that deserve the penalty - but it is sad for those that receive the penalty because another website copied their content and the original site gets caught in the filter.
David McInnis
03/16/2005 05:26 pm
I echo DazzlinDonna's concern. We have a lot of people that scrape content from our site and repurpose it on their own sites. We battle this on a daily basis attempting to head off such penalty. Problem is that some sites don't care and refuse our request to remove the content creating a possible duplicate content problem. We went to google with one offender and were told there is nothing that we could do because of the nature of our content. blah.
me
06/08/2005 10:08 am
There are simply will be too much duplicate content. There are some people soem trick to get around this, for example switch to similiar words by using script, etc....