The page rank analyzer module is designed to automatically analyze a large number of web sites and the following parameters are obtained for every site on the list:
– Google PageRank;
– Alexa Traffic Rank
– The number of inbound links, according to various search engines;
– The Site presence in the DMOZ and Yahoo catalogues;
– The Web page’s TITLE text.
The PageRank parameter is worth a more detailed description.
The basic task of Search engines is to return relevant web pages in response to a search query. To facilitate this, the page text is analyzed. Keyword density and weight, tags used and many other parameters are all taken into account in this analysis. Obviously, most of these parameters are controlled by the author of the webpage. A check with search engine results shows many web pages (so called “doorways”) that are quality optimized for popular queries but which obviously do not contain useful information for the human searcher. So, search engines cannot rank sites based only on page text; other parameters are also used.
This is why search engines use the link popularity parameter; they take the number and quality of inbound links into account when assessing the relevance and interest of web pages. Interesting resources will tend to have more links from other interesting resources.
A large number of inbound links alone is not a guarantee of web resource quality. In addition, the quality of each link referrer is taken into account. For example, an inbound link from the site www.microsoft.com has much more significance than that from a home page such as www.myhomepage.com.
What is PageRank, link popularity, citation index parameter? The citation index is a numeric estimate of the popularity of a web resource. It is an absolute measure of page importance. Each search engine has algorithms to calculate citation indices. These values are not normally published anywhere. In addition to the citation index, which is an absolute value, there is a scaled citation index. This comparative value shows the popularity (rank) of a given page compared to popularity of other Internet pages.
PageRank (PR) is the scaled citation index used by the Google search engine. This value characterizes the “importance” or popularity of each page. PageRank does not take into account the relationship of a page to its referring resources; it depends on the number and quality of inbound links. It is possible to view one PageRank value at a time with the help of the freeware Google ToolBar. Seo Administrator is capable of automatic PageRank display for a large number of sites.
Another parameter Seo Administrator checks is Alexa Traffic Rank. This is a traffic rank of your website among all websites of the world. Ratings are based on a level from 1 to 4,000,000 and it goes beyond 4 mil sometimes. The LOWER your rating on Alexa the better. Meaning if you have a ranking under 100,000 then your website should be producing some good traffic. 3,000,000 to 4,000,000 ratings are for new sites mostly, or sites with no traffic basically. While a rating of 1 will be the website with the most traffic.
The next parameter Seo Administrator checks is the number of inbound links according to Google, Yahoo, MSN. The number of inbound links alone does not give a real estimate of the page significance because it ignores link importance. However, it also gives an estimate of page popularity.
Site presence in DMOZ and Yahoo is very important for increasing a website page rank. The sites presence in these catalogues does give some increase in the number of visitors; however, the main purpose of these catalogue entries is to raise rankings in search engines.
The DMOZ or Open Directory Project is the biggest thematic catalogue in the world and is edited by volunteers. Submission in DMOZ is free, but the site has to be manually approved by an editor and this may take a long time. An entry in DMOZ will guarantee some increase in the number of inbound links and page rank growth because the DMOZ catalogue is copied and used by many other major sites. For example, the Google catalogue is an exact copy of the DMOZ catalogue.
Yahoo directory is a catalogue managed by Yahoo editors. Submission to the Yahoo catalogue is chargeable for commercial sites. An entry in the Yahoo catalogue also tends to raise website positions in search engines.
In addition to the parameters described above, Seo Administrator returns the TITLE text of every page.