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  • Increasing PageRank

    This page not mean that my website/blog have better rank than yours. Back to our goal, “Learn and share together”. In this case, I found a nice article that might be good lesson to practice to improve our website rank. So, come on to the topic.

    Each page of your website has a PR value, and as such you can simply add up the individual PR values of each page to arrive at the total PR that your site has (Bear in mind however that someone speaks of  PR, it applies to a page). How you structure your internal links can influence to some extent what the PR value of a page will be, as will external links pointing to a page on your site. Although PageRank value is important, you should really be trying to increase your total site PR value.

    There are only two ways to increase your “site PR” value:

    1. Get more incoming links that point to pages on your site.
    2. Add new pages to your site (which was discussed in a previous chapter).

    The actual PR value of each page indexed by Google on the Web is in constant flux. All over the Web, new pages are added, old pages are removed, more links are created – all of which over time decrease the “value” of your incoming links.

    As the number of websites (and web pages) in Google’s index increases, so does the total PageRank value of the entire Web, and so also does the high end of the overall scale used. This is kind of like the top student setting the “curve” for an exam at college. The top student gets 100% and everyone else gets correspondingly less.

    Therefore, the top-ranking site (or handful of sites in actuality) gets the maximum, perfect PageRank score (which is a 10 in the Google Toolbar) and everyone else is scaled down accordingly. As a result, some web pages may drop in PageRank value for no apparent reason. If a page’s actual PR value was just above a division on the scale, the addition of new pages to the Web may cause the dividing line to move up the scale slightly and the page would end up just below the new division.

    What this means is that you should always strive to get more links that point to your site, otherwise your site can naturally start slipping in rankings due to this decay of PageRank value for incoming links – both from other pages on your site as well as from other websites. This is also why you should add new pages to your site on a regular basis, as additional pages will increase your site’s total PR score too.

    Decreasing PageRank

    The amount of PageRank value a link forward on to your site is diluted by the presence of other links on the same page. This is where link strength comes into play.

    The greater the number of other links on a page, the weaker the strength of each individual link. The strength of that  “vote” is divided equal y among all other links on the page.

    Which means, all other things being equal, if someone has a link to your site on their page with 100 other links, you may not get any appreciable value from that link in the overall calculation, unless the page has a very high PageRank.

    The PageRank Equation

    OK, I know you’ve waiting for it, so here is the official PageRank equation. It is calculated by solving an equation of 500 million variables and more than 3.3 billion terms (web pages):

    PR(your page)   =   0.15  +  0.85 [(PR(page A) / total links (page A) )  +  (PR(page B) / total links (page B) )  +  …]

    There are a couple of observations to note about the PR equation:

    • PR values for based on individual web pages.
    • The PR value of each page that links to your site in turn is dependent on the PR of the pages that link to it, and so on backwards.
    • A link’s value (amount of PageRank or “voting power” forwarded to the linked-to page) is at most only 85% of the linking page’s PageRank value, and thisvalue is diluted (decreased) by the number of other links on that page.
    • PR has nothing to do with keywords or text in links – it is purely dependent on link quantity and link strength, as discussed previously.

    Some may incorrectly conclude that a link from a page with a PR=4 with only a few outgoing links is worth a more than a link from a page with a PR=7 with 100 outgoing links because for the latter, the “voting power” or value is divided up among 99 other links.

    However, you must remember the logarithmic nature of the true PageRank. This means that a link from a PR=6 page that has lots of outbound links may be worth more than a link from a PR=4 page that has only a few outbound links. Whether this is true is dependent on the actual log base used for the PR equation, which is a secret.

    Do not get caught up in the minutiae of determining whether a site is worth exchanging links with. Barring link farms, Free-For-All (FFA) sites, sites with a true PR of 0 (which either aren’t indexed or have been “blacklisted” by Google), and sites that have nothing to do with your theme, you should strive to get more links that point to your site – period.

    Note: Google performs multiple iterations of the PageRank equation for each page in it’s entire index to determine the new PageRank value each month. This process takes up to a week to accomplish and is the primary manifestation of the “Google Dance” each month. For more information, see Deep Crawl and the Google Dance.

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