What is Google PageRank

Date Added: March 16, 2009 11:00:58 PM

Author: Anonymous

Category: Business: Advertising & Marketing

In the SEO arena there is a lot of attention paid to PageRank as an indicator of a domain's SEO value. Although it is one of the most important factors in a domain's value in the eyes of Google, there are a few points that should be understood. The most important factor in the distribution of PageRank to a web page is the PageRank of the pages linking to it. The higher the PageRank of pages linking to a given page, the higher its PageRank is likely to be. The sheer quantity of links does not help to increase PageRank. So, if a web page has 4 PageRank 4 and 3 PageRank 3 links pointing at it, it will probably be give a PageRank of 4. PageRank is generally not assigned to a web page higher than the pages that link to it. A website can have a high PageRank with relatively few links pointing to it if those links are of a high PageRank.It should be noted, pages that have a lot of low PageRank and PageRank N/A links pointing to them can have their PageRank lowered as a result. First of all, for anyone who doesn't know what PageRank is - it is a value used by Google to decide how important a domain is based on analysis of link on the internet. The higher the PageRank, the more likely Google is to trust it. This holds true for both external and internal links. Google gives each page on the web a score and when one web page links to another it passes some value onto the page it is linking to. Google PageRank has eleven scores, between 1 and 10. Web pages that don't have any PageRank are often notes as having N/A PageRank. There are those that suggest that the text content of a page affects PageRank assignment, but this doesn't seem to be the case. There is no substantiated evidence that text affects PageRank other than pages that have been spammed often have their PageRank removed. When it come to sub-pages, the time Google has known about them is a factor in PageRank distribution. When new sites first get given PageRank their sub-pages often remain without any PageRank. In general, sub-pages are somewhat slow to get assigned PageRank. Google is generally less trusting of sub-pages unless they belong to a trusted domain. In particular websites with a lot of sub-pages and even more so sites that link to a lot of internal pages (like directories) can struggle to pass their PageRank to internal pages. The structure of the site has a major role to play in the assignment of PageRank. Google uses what is known as block level analysis to analyses web pages. They use their vast knowledge of the structure of the web to decide what links on a page are probably the most trustworthy and the pages these links point to are more likely to receive PageRank. Google can and do manipulate websites' PageRank. This is generally as a penalty for sites that have used unhonest methods. This can often cause all the site's sub-pages to loose their PageRank. It has also been claimed that in the past Google has made mistakes in PageRank distribution. Finally, the PageRank of a web page may change even when there has been no change in the links pointing to that page. This is either due to changes in the structure of links between all websites or adjustments made by Google. Sky Alfaro is an SEO consultant with the SEM Labs SEO Agency where she helps small to medium sized companies with search engine marketing training.

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