Supplemental Results
Important pages of my web site are shown as supplemental results
Supplemental Results are not necessarily an indication of a quality filter flag. Pages that are perceived by the web site owner to be important, yet showing the Supplemental tag on their results may or may not be caused by factors that could be seen as a problem that needs to be or could be corrected. The supplemental index is seen as a secondary database of results for unique information appearing on, and sometimes only on less important pages, URLs that are unlikely to be looked or shown for generic search terms, but will remain in the index for more refined, obscure queries.
+ Symptoms: Pages of the web site that previously were shown as normal results are now Supplemental Results, thus rank significantly lower than other pages and web sites.
+ Common reasons: Inconsistent, linear, or otherwise corrupted navigation. Accessibility issues resulting in PageRank not flowing through the web site in a way its owners would like it to. Low PageRank of the pages on the web site. Duplicate content. Also, URLs that have been changed, redirected or deleted may be featured with their old versions in the supplemental index along with a cached snapshot of their last seen state up to a year. In these cases make sure to check whether the URL in question also shows as a normal result, which would be the updated version of the same page.
+ Resolution: Examine your web site structure thoroughly for duplicate content, navigational inconsistencies and link hierarchy. Also, as the web site is seen more and more important as a resource, gaining more quality inbound links will raise its PageRank and allow its inner-level pages to be viewed as a relevant result for broader queries, and may eventually be transferred to the normal index. Make sure to pass the proper amount of weight to pages to be considered important by using Anchor text links instead of javascript, flash, image links.
See more information and hints on the reworked Supplemental Results index , Duplicate content, proper Website navigation and PageRank in the related articles.
You may also open the + Website Diagnostics Panel to help you diagnose your web site.