About | Joomla SEO traps for young players - PDF duplicate content |
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While surfing the web recently, I came across a really nice blog site written by Steve Burge from Alledia.com . Anyway, while browsing Steve's blog I found this little gem which I'd never heard of, but in hind sight is an obvious but brilliant insight. When compiling pages in Joomla, many of Salsa's customers ask to turn on the "PDF" icon which when clicked on, opens up a PDF version of the page being viewed. While this is a nice feature from a site usability point of view where users might want to print a nice paginated / formatted plain version of the web page using PDF technology, a nasty side effect is that of flagging this as duplicate content to the search engines. Steve's blog post may be found here: http://www.alledia.com/blog/search_engine_optimisation_(seo)/seo_problems_to_avoid_in_joomla!
When the search engines see one version of a page as HTML, and then an almost identical copy of this page accessible on the site in PDF format, this risks your page being relegated to the supplemental index due to it being identified as a duplicate copy of the HTML version. For those who aren't familiar with the supplemental index - this is a separate index in which your page is placed, which ultimately results in it not being ranked for the terms you might want it to - I.e. the Google Nanny's version of "the SEO Naughty Chair" - not asseptible behavoir! Anyway, thanks Steve for this nice tip on Joomla SEO best practice. |
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