Position 6 Penalty : When your website come at 1 or 2 Rank on a keyword shift downwards to rank position number 6 in Google search engine. Lots of webmaster saw this penalty in mid of December month.

My Website is effected with Position 6 Penalty ?

Tedster on webmasterworld says

Here are the main signs --

1. Well established site with a long history.
2. Long time good rankings for a big search term - usually #1
3. Other searches that returned the same url at #1 may also be sent to #6, but not all of them
4. Some reports of a #2 result going to #6.

What we can identify so far

A. It's search term specific (usually the biggest and best converting phrase)
B. Therefore, not a url or domain-wide penalty on all terms
C. A little testing on one site seems to show it's not an on-page problem
D. That leaves off-page but on-site, or off-site, or posibly backlink issues

If your website was facing position 6 penalty a lot of keywords then you need to read How I Got My Google Ranking #6 Filter Removed.