Probe Google’s Supplemental Index


Simple Way To Probe Google’s Supplemental Index

You can go to Google search and type in: *** -sjpked
replacing ‘yoursite’ with your domain/site to see what pages are indexed in Google’s Supplemental Index.
If you see any important pages there you should chëck your whole linking structure of your site. Are these pages linked properly? Are they orphaned? Are they well positioned in your internal site architecture? If there are obvious interior linking problems with these pages, fix them. It is also a good idea to see what percentage of your pages are in this index.

How To Calculate Your Supplemental Index Ratio
You can get your percentage of Supplemental results by dividing the number of pages in the supplemental index by the total number of pages in the main index. *** -sjpked
This will give you a good indication of the overall health of your site. If you have too high a ratio or too many pages in the supplemental index you should fix your site’s linking structure and remove duplicate pages. Make sure robots can crawl all of your pages or at least the ones you want them to crawl.
If you do find your site or too many of your pages in Google’s Digital Attic, simply try to íncrease the PageRank of those pages. This is the main remedy supplied by Matt Cutts:
“The approach I’d recommend in that case is to use solid white-hat SEO to get high-quality links (e.g. editorially given by other sites on the basis of merit).”
In other words, raise your PageRank to get those pages out of the supplemental index. This has always been the basic key to getting traffíc from Google. Quality content plus quality links equals quality traffíc from Google.