Google and Science website. How to Increase Page Rank
The term "subject" has many meanings - sometimes this term is called a color palette (combination of complementary colors for the elements of the screen), this word can also mean the subject matter, but in Google "theme" is the subject of the search - "topic" (thematic section). Topic - this theme of the narrative web pages. For example, the pages devoted to jewelry, talk about the various types of jewelry. Therefore they are subject site. Each page may contain information about different types of jewelery. Topic page dedicated bracelets are bracelets and necklaces on the theme page - necklaces. While the overall theme of the site - jewelry.
Like many of the most popular search engines, Google takes into account the concept of the theme to the extent that it affects the ranking of sites. Some are often surprised that their pages with citation index, equal to 6, pages are displaced with a lower rating (5 or 4) for certain search queries. On this there are a lot of reasons. And one of them - this site subjects.
A good example is the poster Webworkshop.net. During the writing of this paper, this site contained only 5 pages, and all of them have been indexed by Google. On this site link multiple sites with an average PR (citation index) and one of the pages of the site - a link from DMOZ. As a result, 4 pages have PR 4 and the page linked to DMOZ - PR 5.
Small's "interrupts" rated pages with higher PR sites larger. Why? Because the site is indexed as a whole theme. It is dedicated to only one category. Even on the main page, the word "PageRank" occurs more than once.
Some sites contain in a section devoted entirely different topics, and this leads to "smearing" of the overall theme of the site and reduce the PR.
That's one of the reasons that page with a lower PR sometimes "interrupt" pages with higher PR. In addition to subjects there are many factors affecting the determination of relevance of the page (site). If I add a few pages on the site, the content of which is significantly different from the main theme of the site, the PR, reflecting the integrity of the collected information on the site to deteriorate. Whatever digressions, they negatively affect the PR site. Although the site will still contain pages, selected topics, the main theme of the site a bit "will be diluted." In the example on the site jewelry, each page tells about a certain kind of products - necklaces, bracelets, rings, etc. But the overall theme of the site - "jewelry" and not "necklace". If we take the site, describing only the necklace, and then he will have the theme "necklace". And for that keyword, he has every chance to get ahead in the ranking of the site with the theme of "jewelry." This, of course, will depend on many factors, and the theme - one of the most important.
Most sites do not stop at the detailed description of a necklace or any other topic. Typically, they include topics of a general nature. However, we can improve the thematic focus of the site and to define more clearly the theme for each page.
Imagine that's jewelry contains information about the bracelets, rings and necklaces - and each page of the site tells about all three types of products. As with the topic of the page and site theme? Information about these products is distributed throughout the site, and pages in random order. Therefore, the theme of each individual page is difficult to determine unambiguously. On any of the pages information about any one form of products will not prevail over the other. This is also true for the theme of the site.
Now let's assume that's thematically divided into sections which separately considered necklaces, rings and bracelets. Contents page of each section is strictly relevant. This provides a higher ranking pages on a given topic search.
Links. Next link texts, in order to flesh out the theme of each page, links should be placed so that the pages of one of the thematic section were linked (page of necklaces, respectively - with pages of necklaces, etc.); it is also important to properly use the link text.
Google considers the link text to the page to which it refers. Thus, the link text "handmade bracelets" is regarded as part of the page to which the link points. If this page is actually devoted to handmade bracelet, the link text reinforces the importance of the topic.
In order to check how important the link text, the following experiment was conducted. On many pages were placed on a specially prepared links page, with text links was the same. Contents prepared page had nothing to do with text links. Despite this, the page had PR1. This method has become known as "Google bombing".
Conclusion In order to properly set the theme of a site dealing with various products, it is necessary to split the pages into sections devoted to specific topics and correctly link the page of each section. Page of each section are all located in the same directory, but it is preferable to create a sub and name them according to the product to which they relate. Tie the main page or site map to one of the pages of each section. From this page, it will be easy to move to any other page section, as they are interconnected. If the product in question has many species, it is convenient for them to create additional subsections, using the above procedure.
Themes and Ratings That's all that can be said about the topics. But they - not the only factor in determining the rankings. The determining factor for the latter is the citation index - the number of sites linking to your site. To evaluate the role of PR in any category, see the level of competition in the index of citing Google and apply its principles to all links site, including links within each section.
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