The Essence Of Google Pagerank
Google’s PageRank is something very interesting. While it’s just one factor among many, and actually not as important today as it was just a year or two ago, it’s something that clearly distinguishes Google from its competition.
The theory behind PageRank is that the more popular a webpage is, the higher that page’s ultimate value. While this sounds similar to a popularity contest, it’s surprising how often this approach delivers high-quality results.The particular formula utilized by Page Rank is really a tightly held secret, but we can say for certain that it’s calculated utilizing a combination of the quantity and quality of backlinks. That is, the amount of inbound links you obtain matter, but it’s important too which pages are linking to your site.
The thing is, Google figures that links from pages more closely associated with your page’s topic should mean more than random links from unrelated pages. So, for example, if you’re marketing hospital supplies, a link from the hospital website would result in a higher rank than a link from a site about minor league baseball. With this in mind, it’s likely that a page with fewer, higher ranked pages linking into it will have a greater PageRank than a similar page with more pages linking into it.
Dynamic pages are hard to index
As large as the databases at Google, Yahoo!, and Bing are, you may still find lots of web pages that don’t make it into those databases. What forms of web pages are difficult for the search engines to index and why?
First, know that most search engines today don’t do a sufficient job of searching the “deep Web,” those web pages generated on the fly from big database driven websites that is, pages that are made when a visitor fills in a form or enters a search query on the site. Similarly, search engines also don’t always find pages served by the big news sites, pages housed on web forums and discussion groups, pages of blog posts, and so forth.What’s the common factor behind these hard-to-index web pages? They all contain “dynamic” content that changes frequently, and also the pages themselves don’t also have a fixed URL. With most dynamic web pages, the URL and also the page is generated on the fly, typically as a result of a search within the site itself. This lack of a permanent URL makes these pages difficult, if not impossible, for a search engine spider to locate. That’s because a spider, unlike a human being, can’t enter a question into a site’s search box and click the Search button. It must take those pages that it finds, typically the site’s fixed webpage.
The dynamically generated pages slip with the cracks, as they say. This is why it’s possible to search for any page that you realize exists and never find it listed in a search engine’s search results. It’s not a trivial problem; more and more from the Web is moving to dynamically generated content, leaving the vast majority the Internet beyond the capability of search engine spiders. This should give you pause if you intend on including dynamic web pages on your own website.
Images are less important than textIn addition to dynamic pages, most search engines have a hard time analyzing as well as recognizing images and other nontext content on a web page. This might include pictures, videos, or those annoying Flash animations that most consumers don’t like anyway. What each one of these media types have in common is that they don’t contain any text.And because text is exactly what search engines index, the search engines don’t index these pages. In effect, a web page without text is invisible towards the search spiders! So if your website relies heavily on images, animations, and other media, it might be negatively affecting your search rankings. Better to replace those pretty pictures with boring but more effective text content!
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