Many Blog owners and webmasters have been continuously upset about their new website and pages ending up in the Supplemental Index. Nothing to worry about now, as Google has removed the ‘supplemental result’ labels from the search results.
Google originally introduced Supplemental Results in 2003 so they could separate unimportant pages, and pages with duplicate content from their main index. The Supplemental Results were displayed as a result to queries made by searchers if no substantial results could be fetched from the main index. The whole idea was to make the search results more relevant and not to show old pages with little or no content in the Search Results. Learn more about Google Supplemental Results at ABCSEO.
Now, Google has extensively changed the way pages are indexed and added to the main index, which is why they are making the supplemental results go mainstream. Many blog owners, webmasters and website owners have given positive feedback about Google doing this, as they can put their efforts on new things and stop worrying about the Supplemental Index Results. Other searchers have shown their criticism as they will have to visit the Supplemental Pages when doing a search which might affect the quality of the Search Results displayed.