Search engines don't see all types of links, so when building links for SEO focus on those that make a difference, writes gyutae Park. He provides examples of three links that are invisible to engines, including No follow links created by Google, which allow webmasters to tell search engines when a link should not influence rankings. Park makes suggestions on tools to use, such as the Seo for Firefox extension, which highlights no follow links on the page. This makes them easy to find.
Other link types search engines cannot read and execute include Javascript code. "You might find a dofollow link opportunity on a great high-authority page and think you landed on a goldmine," Park writes. "However, you could very easily be wrong. If the link is generated via Java script, it might as well be invisible."
Saturday, January 10, 2009
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