There’s a lot of talk by many SEO consultants about themed text links and how they are the ONLY text links a webmaster should be seeking. Some go as far as to state un-themed links are worthless in the search for high Google rankings!

What’s a Themed Text Link?

First we must decide what a themed link is and this causes a major problem!

I know a site about home furnishings is related to a website about kitchen accessories (related meaning the same visitors might like to see both sites), but does Google? How can Google match content that doesn’t use similar content/keywords!

Are there thousands of Google employees categorising sites so text links can be graded on relatedness? Of course not, the vast majority of what Google does is automated, so if Google can’t automate text link theming, it won’t use it as a ranking factor.

So IF Google treats themed links differently (and this is far from a certainty) how could it determine theming of text links?

If Google uses theming it is going to have to be pretty basic and automated. For example it might be something like this-

1. Anchor Text – Does it match the linking pages content.
2. Title Element of the linking page – Does it use keywords that are on the linked to page.
3. Body Text of the linking page – Are the keywords used as anchor text within the body text.

These are simple things Google could look for, not sure if they do (I suspect they do something like this), but they could and so IF Google uses link theming this is how I think Google would do it.

Lets Assume Google Themes Links

What this means is for a text link to be themed the linking page should have a title and content that matches the anchor text of the text link.

Hmm, that’s a problem, because in the real world despite having many quality text links from sites that are related (like the home furnishing and kitchen accessories sites example above) only a small percentage match the above criteria and so most are not going to be fully themed.

And yet my sites, my colleagues sites and many SEO clients websites are doing extremely well in Google with few themed text links, why?

Themed Internal Text Links are as Good as Other Links

Many webmasters believe the only text links that count towards a pages SERPs are incoming links from external sources, others believe incoming links from external sources give far more benefit than a similar internal link. Both are wrong, to Google there is no difference between an internal and an external incoming link, both are treated the same way**

** Actually internal links are better for one reason, when a site has aged PR (from links that have been live for a year) a new internal link passes full PR/link benefit right away. This is why big news sites like CNN can temporarily take a high position for a hard SERP just because they had a new page with a link from their high PR home page. However if CNN linked to a new page on another domain it wouldn’t get the same SERPs because links from external sources have to age (at least 9 months) to pass full PR/link benefit see Google Sandbox for more details.

Yes it’s true an incoming link from another site will eventually increase a sites PR/link benefit (which is why we all like new links), but in ranking terms they are no better than an internal link.

Probably lost a few of you on the above point, so I’ll delve a little deeper.

A websites SERPs are powered by the PR flowing through the site, more PR a site has more likely a particular page will do well in the SERPs (I’m ignoring the age of incoming external links, that’s another article!). When a site gains a new incoming link from an external source that passes new PR/link benefit to the site, basically it increases the sites PR and this in turn helps every page of the site do better.

With internal linking there is no over all increase in PR/link benefit, what you are doing is sharing your existing PR/link benefit through your site using text links, and since a sites PR/link benefit is finite it can only go so far.

When you add a new internal link to say a new page this takes some PR/link benefit away from the existing pages of the site, basically the new page is taking a share of the sites PR, how much of a share depends on the number of internal links and which pages are linking.

Analogy time: A growing website is like a growing family, think of a medium sized family, 2 parents and 2 children, when a third child is born it receives some of the resources (parents time for example) that used to go to the first two children and if a 4th child is born those resources are spread thinner. Bring in another family member (grandmother) to support the family is like adding new incoming links from external sources :-)

The effect of this sharing of PR is current SERPs can fall when a webmaster adds new pages because the existing pages no longer receive the same PR/link benefit they had before!

This does not mean don’t add new content, just make sure every page of your site has a function (preferably targeting a new SERP), otherwise you are wasting some of your PR/link benefit! And if you add a lot of content look for new sources of PR to maintain the overall PR/link benefit to existing pages.

As you can see to the uninformed webmaster that adds new internal links traffic can fall if they wasted PR/link benefit and this leads them to the conclusion internal links are downgraded or don’t count at all.

Back to Themed Text Links

Since internal themed text links are as good as similar external text links you should make sure all internal links use relevant anchor text. When done correctly this can generate thousands of targeted visitors a day to deep product pages with quite modest amounts of PR flowing through a site.

And this is where theming of incoming text links from external sources is not needed. Send an un-themed PR7 link to your home page and your home page could increase in PR to as high as PR6 (depends on several factors). Now through wise internal linking you turn that un-themed PR into highly themed internal text links which are just as good as any other PR6 link!

It is that simple, every text link (and this includes image links) to a site no matter where it is from (as long as it passes PR, for example doesn’t use rel=nofollow) will increase the sites overall PR which through keyword rich internal anchor text of internal links can power a site to high targeted traffic from Google.

And that’s why buying un-themed text links works, they increase the overall PR of the site which aids internal linking.

David Law : AKA SEO Dave, Search Engine Optimization Consultant, Internet Marketer, Stallion WordPress SEO Theme Developer and Nice Guy :-)

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