Don't know if you're aware of it or not, but Google has in fact two indexes for web page inclusion - current index and Supplemental Index. In this second "drawer" Google places web pages with self damaging SEO flaws.
Even though the webpage was relegated from the main index to a supplemental one, it continues to be indexed, in fact with even fewer restrains in Google algorithm.
The sad fact is that this is the last stop for a page before is being 100% dumped by Google.
One important distinction must be made here and this is: Don't confound the SI with Google's most feared Sandbox Effect. The Sandbox effect tends to appear with webmasters who conduct aggressive SEO practices such as intensive link building campaigns, usage as anchor texts of expensive keywords (as judged by Adwords stats), getting involved in doggy link farms and link exchanges in general, etc.
Before I present the major reasons why a webpage slips in the supplemental index, please take note that this is a auto generated algorithm and no human inspector supervises who gets or should get in and vice versa.
Primary reasons why webpages are redirected to supplemental index:
1. Random and unthoughtful connections (links) between webpages on the same website - probably the most encountered cause of all;
Basically Google undertakes thorough inspections or indexations on a regular basis. Each time Google compiles new data it also compares these data stocks with previous info collected and stored in it's main index.
If there are indexed webpages that don't show up in current site inspection, Google presumes that you dumped them.. These webpages are qualified to be moved in supplemental index.
What if you think otherwise and feel that your webpages should stick in the main index. The solution is at your finger tips. Just build some backlinks pointing to your disqualified webpages and wait until Google re-indexes the pages where you've embedded the backlink on. Some quality back links can be obtained from social media websites; these are loved by Google and enjoy regular indexation.
2. there is no direct connection between the home page or (appropriate) category page and the demoted webpages;
What you should do: Easy, Get a link on the home page or category page. Check out the feedback, namely if the penalized webpage shows up in Google index after a week or so.
3. web pages haven't been updated for more then a year since first indexed - this is a serious cause of de-indexation with slim websites that have around 10 webpages;
What you should do: rewrite the headings and the title tag. If the content is outdated, consider rewriting the entire body text. In a nutshell, focus on creating new, optimized content.
Other accessible ways to claim back your webpages from the supplemental index:
> Make a constant preoccupation to submitting your website to well rated article directories. DMOZ and Yahoo Directory are thee places to start;
> Write and submit press releases. The paid PR directories like PRWeb, PRLeap work best;
> Build quality backlinks to your site's homepage. A short boost of twenty five links to start will revitalize your website;
> Lat but not least, adjust your site's on-page factors.
The truth is that Google's supplemental index could negatively impact your site's overall authority and rankings if isolated webpages fall in it one after the other. So be sure to both rescue and prevent Supplemental Indexation from happening with the methods presented above.
Article Directory : http://www.articlecube.com
