Quote:
Originally Posted by Webnauts
So do you want to say here that linking to supplemental pages is the best solution? If the pages have too low PageRank I could understand and would agree, if they are important pages though. But what if the problem is one of the other cases?
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What I was replying to was a question about getting more inbound links. More inbound links directly to a page in the Supplemental index is more likely to have a positive effect since "PageRank is the primary factor determining whether a url is in the main web index vs. the supplemental results"
As for the other causes,
Pages due to canonicalization problems, e.g duplicated content, too much content similarity; doesn't seem to mention anything about about Supplemental pages unless I missed something.
Pages with low or no content; doesn't seem to either.
Error pages, if a site does not use If-Modified-Since, Last Modified and/or Expires rules; again, no mention of Supplemental indexed pages being the result.
Actually, none of the links you list say anything about those problems causing pages to be moved to or start out and stay in the Supplemental index.
The link to the page about too low of PageRank would be a good place for Google to mention the association but they didn't.
The only references by a Googler regarding a cause for a given page being in the Supplemental index that I have found is
Fall weather forecast and
Infrastructure status, January 2007 although that is not to say other info from Googlers isn't out there somewhere, just that I haven't found it.