PageRank Is Only One Factor
Although limited by sample size, the results indicated that PageRank is not an overwhelmingly dominant component of website ranking on Google. If it were, the average of correct PageRank order for these keywords really should be somewhere around 4 to 5 (the real average was about 2.15). Thus, other factors including keyword density in webpage content, title, and even the URL, play a significant role in webpage ranking. I want to mention that, while looking over these results, I noticed that about 4-5 of these keywords came up with at least one webpage within the first 10 results (first page on Google) that had absolutely no PageRank at all (PR 0). In addition, a couple keywords came up with results with exactly reverse-order PageRanks – that is, the first result at the lowest PR and the fifth result had the highest (for example, PR8, 7, 6, 6, 5 or something similar).Google PageRank and Search Engine Optimization
So what does this all mean for the average webmaster concerned with SEO? The first lesson is that keywords and other non-PageRank factors can be absolutely crucial. They can put a PR6 site above a PR8 site (if you don't believe me just use the tool I mentioned above). Does this mean that website owners should not worry about links? Not at all. It's just that all the time people spend on exchanging and acquiring links for the sole purpose of increasing PageRank may be better spent developing website content and keyword strategies instead.As far as keywords are concerned, we discovered that having keywords in the website title and URL can help a site rank much more competitively. Good content tends to have the fortunate effect of both increasing your one-way in-bound links (people like to link to sites they find interesting, thoughtful, informative, or helpful), thereby improving your PageRank, while at the same time producing keyword rich webpages good for both human viewers and search engine spiders.
