There is none.
But that doesn’t make links from Wikipedia worthless.
First, let me explain why Wikipedia links have no SEO value. Wikipedia has one of the highest pageranks you can get – it’s usually at the top of the search results for anything located in it’s massive database.
Because of this, Wikipedia is well aware that it would not take long for people to start gaming Wikipedia for free high quality backlinks since anyone can edit a Wikipedia article. So, to make sure no one abuses external links on Wikipedia, all external links are no-follow – meaning they are not counted as links by the search engine spiders.
You can add all the links you want to Wikipedia, but it will not help your pagerank in anyway.
However, just because they are not counted as backlinks, does not mean that they aren’t valuable.
Including links in the Wikipedia is a good, old fashioned marketing strategy. Look at it this way. Since most people are likely to read a Wikipedia article about a particular subject, they’re more likely to click relevant links related to that article. So, don’t you want to make sure your links are there for people to find?
To give you an example, on my personal blog Anglotopia – which is a blog dedicated to the Anglophile audience, I wanted to generate more traffic for the generic term Anglophile. If you search for ‘anglophile’ in Google, the Wikipedia definition is first. I went to the page, edited it and added a few relevant Anglophile websites, with mine at the top.
I now get a few high quality hits a day from that very Wikipedia article. I may not be getting any SEO link juice, but I’m at least getting some great traffic.
Now, generally it can be a little difficult to edit a Wikipedia article, especially if it’s moderated by a lot of people. Your edits/links may get rejected. I’ve found it just take a little persistence and it’s important to add value to a Wikipedia article, not just spam it with links.
So, go out there are find a relevant Wikipedia article and experiment with adding a link to your website. Watch your analytics reports and see what happens.
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