Comments on: Why Duplicate Content Causes Supplemental Results http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html Search Engines | Blogs | Marketting | PHP/MYSQL | CSS Fri, 04 Jan 2013 13:01:03 +0000 http://wordpress.org/?v=2.5 By: g1smd http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-16126 g1smd Sun, 11 Nov 2007 21:10:13 +0000 http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-16126 I agree with all that was said, above. Duplicate Content, Pagerank, and Supplemental are all intricately bound together in several different ways. I agree with all that was said, above.

Duplicate Content, Pagerank, and Supplemental are all intricately bound together in several different ways.

]]> By: Ahmed Bilal http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-6161 Ahmed Bilal Sun, 11 Mar 2007 16:18:54 +0000 http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-6161 Definitely agree with your rant on PageRank... Definitely agree with your rant on PageRank…

]]> By: Halfdeck http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-5190 Halfdeck Mon, 26 Feb 2007 21:59:35 +0000 http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-5190 Yes, though Google tells you build for people, not search engines, the reality is that we must build for both people AND search engines. Anyway, same thing happened to one of my sites last year, so I can relate. In fact its the site I most cared about and with the biggest potential to make money. Each page on a blog is designed to attract organic links. A CMS site with thousands of product pages, on the other hand, must generally rely on other means to increase visibility. Unless you're amazon.com, you may have 90% of your backlinks pointing at your home page. That's why internal link structure for CMS sites is key. Even a TBPR 10 site can have thousands of supplemental pages if not enough PageRank flows to deep pages. Yes, though Google tells you build for people, not search engines, the reality is that we must build for both people AND search engines.

Anyway, same thing happened to one of my sites last year, so I can relate. In fact its the site I most cared about and with the biggest potential to make money.

Each page on a blog is designed to attract organic links. A CMS site with thousands of product pages, on the other hand, must generally rely on other means to increase visibility. Unless you’re amazon.com, you may have 90% of your backlinks pointing at your home page. That’s why internal link structure for CMS sites is key. Even a TBPR 10 site can have thousands of supplemental pages if not enough PageRank flows to deep pages.

]]> By: snork http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-5181 snork Mon, 26 Feb 2007 18:06:13 +0000 http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-5181 I have a ratings and review site. Prior to official launch, the googlebot crawled several thousand dynamic pages and classified them as supplemental. A user will most likely not even see the search page as it is buried somewhere, who knows where -- how can this improve a user's experience from google's perspective? I mean we all could start writing scripts to generate thousands of static pages with unique urls and no url variables, with a rock solid internal link structure, but does this help the internet in anyway? It certainly does not help me maintain the site. Whatever. Google, the new MS. I have a ratings and review site. Prior to official launch, the googlebot crawled several thousand dynamic pages and classified them as supplemental. A user will most likely not even see the search page as it is buried somewhere, who knows where — how can this improve a user’s experience from google’s perspective? I mean we all could start writing scripts to generate thousands of static pages with unique urls and no url variables, with a rock solid internal link structure, but does this help the internet in anyway? It certainly does not help me maintain the site. Whatever. Google, the new MS.

]]> By: Halfdeck http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-4721 Halfdeck Mon, 19 Feb 2007 19:45:09 +0000 http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-4721 Vince, interesting point. I remember some other guy posting that authority sites can get away with duplicate content while sites with low trust get dumped in the supplemental index. I see it a little differently than you though, plus keep in mind Google claims it doesn't use a % similarity to detect duplicate content (check out my earlier duplicate content myth post for more on that). Sites with low trust aka PageRank not making it into the main index isn't all that surprising - that fits Matt Cutts' explanation about supplemental index perfectly. Sites with high internal PageRank pages maintaining a strong presence in the main index isn't surprising either. What is surprising is that in spite of Googlers insisting that Google is "pretty good" at detecting and filtering out duplicate content, I just don't see it happening. For every song with nearly identical lyrics, you'll find dozens of sites in the main index. Vince, interesting point. I remember some other guy posting that authority sites can get away with duplicate content while sites with low trust get dumped in the supplemental index. I see it a little differently than you though, plus keep in mind Google claims it doesn’t use a % similarity to detect duplicate content (check out my earlier duplicate content myth post for more on that).

Sites with low trust aka PageRank not making it into the main index isn’t all that surprising - that fits Matt Cutts’ explanation about supplemental index perfectly. Sites with high internal PageRank pages maintaining a strong presence in the main index isn’t surprising either. What is surprising is that in spite of Googlers insisting that Google is “pretty good” at detecting and filtering out duplicate content, I just don’t see it happening. For every song with nearly identical lyrics, you’ll find dozens of sites in the main index.

]]> By: VinceVinceVince http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-4702 VinceVinceVince Mon, 19 Feb 2007 13:19:24 +0000 http://seo4fun.com/blog/2007/02/19/why-duplicate-content-causes-supplimental-results.html#comment-4702 Supplementals are a difficult concept. I think that they are like most of Google's algorithm - context sensitive. By that I mean that two almost-duplicate pages at PR0 may cause a supplemental problem, whereas the same two pages at PR4 probably wouldn't. I think the way to conceptualise it is to start it from the other end and say that pages more than X% duplicate will cause a supplemental problem. And then to realise that the value of X gets higher the more pagerank the pages have. I'd not be surprised if anchor text played a role here too, in terms of differentiating similar pages. Supplementals are a difficult concept. I think that they are like most of Google’s algorithm - context sensitive. By that I mean that two almost-duplicate pages at PR0 may cause a supplemental problem, whereas the same two pages at PR4 probably wouldn’t.

I think the way to conceptualise it is to start it from the other end and say that pages more than X% duplicate will cause a supplemental problem. And then to realise that the value of X gets higher the more pagerank the pages have.

I’d not be surprised if anchor text played a role here too, in terms of differentiating similar pages.

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