I'm encountering this kind of error specifically with .NET websites. Different layouts of it are showcased by different search engines, containing names of pages that I have never created at all. It is becoming very unreliable for end-users, as a result to access my site and I don’t have any idea on how to resolve this. Can someone please help me?
Multiple versions of the same homepage
Perform a site audit on the particular .NET site, and start with checking if pages called www.abcde.com/default.aspx or www.abcde.com/index.html or or www.abcde.com/home exist.
In case they do, you instantly know that this is a duplicate of the homepage that a search engine finds by navigating through XML sitemaps. To get rid of this, follow these simple steps:
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Perform a “crawl” of your site
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Export the crawl into a CSV spreadsheet.
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Filter on the basis of the META title column, and search for “homepage” title. This will fetch you all duplicates of your homepage.
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Now, you have to add a “301 redirect” to all the duplicate version of the page which points to the correct version.
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You can try using the “rel=canonical” tag in the head section of those pages.
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You could also leave the rest of the duplicate pages to your search engine because, usually different Page Rank levels and cache dates exist for all pages apart from the original one.
