For the last *#$%!ng time, there is no 'duplicate content' penalty

The search engines won't ban your site if you post the same text more than once. But that doesn't mean it's the right thing to do.

By Donald Ritchie

Of all the myths and misunderstandings surrounding search engine optimization (SEO), the one that seems to cause the most alarm and confusion is the so-called "duplicate content" penalty. Webmasters and SEO practitioners often get into a state of panic if they notice the slightest hint of duplication in their sites. At any moment, they fear, Google will banish them from its index for good.

Let's clear this up straight away: There is no such thing as a "duplicate content" penalty. Google will not penalise you - in the sense of banning you from its search results - if the same text happens to appear in more than one place. That's equally true if the duplication occurs within your own site or across multiple domains.

Prove it for yourself

You can prove this for yourself. Just pick a distinctive phrase from a well-known song lyric, poem, or some similar text. Punch it into the search engine surrounded by double-quotes. Then check the results. I just did that for the line "Quoth the raven, nevermore". Google happily showed me 14 separate sites containing the full text of Edgar Allen Poe's most famous poem - and that was just in the first two result pages. Clearly, no duplicate content penalty at work there.

But just because the search engines won't ban your site because of identical content, it doesn't mean that you can ignore the issue. As SEO consultant Jill Whalen points out, duplicate content "generally goes hand in hand with other SEO problems Post-Panda/Penguin, dupe content on websites can often have major repercussions".

What Google does

In general, when Google finds several pages containing very similar text, it will give the highest ranking to the one that it decides most closely meets the searcher's needs. That decision will be based on geo-targeting, link quality, and all the other "signals" that Google employs. Other pages containing the same text will usually still appear, but lower down the results.

This is as it should be. As Google explains in a blog post: "Our users typically want to see a diverse cross-section of unique content when they do searches. They're understandably annoyed when they see substantially the same content within a set of search results."

This is especially significant where the pages in question attract high-quality links. If those links are split between many similar pages, the value of each link will be diluted. By contrast, if the content was consolidated into a single, unique page, then that page would enjoy the benefit of all the incoming links, and would almost certainly rank higher than it would do otherwise.


To get a better understanding of how to deal with this issue, it helps to look at the different reasons that dupe content might occur:

Clearly, duplicate content can, in many cases, result in lower rankings. But that's a far cry from saying that your site will be penalised. As Jill Whalen points out, "penalties are for spammers". The search engines are not out to punish you just because you happen to publish similar text in two different places. In the post-Panda/Penguin world, webmasters and SEOs have plenty of things to worry about. For most of them, the so-called "duplicate content" penalty is not one of them.

January 2013

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