Search engine optimization-The Way Backlinks Are Counted
Friday, July 18th, 2008Similar to the history of your site, the history of the links to your site have gained importance. As was noted in Google’s patent application #20050071741 titled, “Information retrieval based on historical data,” links, like sites, gain weight over time. This point was further clarified in the latest update as sites with longstanding links gained strength while sites with many new links did not see significant ground gained. The “sandbox” on links is functioning in fractions in that after a period of time a link will gain part of it’s weight, after a bit longer, it will gain more, etc. (the exact length of time is of course a closely guarded secret by Google and likely changes as their algorithm does). This means your link building today won’t create any substantial effect on your Google rankings until months down the road.
Additionally, the relevancy of links to your site is still important however Google’s ability to determine relevancy appears to have improved. Pages no longer have to containing the exact keyword phrases to be relevant but rather have to be from related industries. For example, a link to an SEO site from a web design site would be considered relevant even though the keywords on the page are not specifically related to SEO.
Natural links have gained weight over unnatural links. Links that are contained within content areas of a page will be weighted more strongly that links that appear alone or in a directory-style (like reciprocal links pages) as they are considered more natural. When you are having links built to your site try to get them placed within the content (within the description portion of your reciprocal link for example). Also, in link building you will want to insure you’re varying the terms of your anchor text. Creating hundreds of links with identical anchor text will quickly be detected as a link building effort (i.e. not natural) and thus will carry little weight. Different anchor text for your links will appear more natural and thus will have a more positive impact on your rankings.