For many people (even quite experienced) - is a mystery.
These indices are generated with the external reference mass with thematically similar resources. Based on this fact, the choice of the donor site should be given special attention. If you choose to buy links, not understanding the logic of pre Yandex or Google, you risk to waste money by going absolutely useless for your website promotion.
Algorithm of the search engine site for theming
As a result of serious reflection on the information received from various sources, we can derive three main principles:
- First, study the key words appearing in the semantic core of the desired topic at sites of competitors that are in the catalog. We are looking for similarities with their keys, something borrowed. All you have borrowed, in the text on your main page. By the way, these same sites can be later reference when purchasing. With the right hand column you selected will show the spider that your resource contains content that is close to the fixed system of thematic sites. After working this principle, you will get the most use for your website and avoid mistakes in identifying subjects.
- If the links are bought, you need to analyze donor sites on the proximity of topics. Spidering, indexing performing web pages by following links and stores information in a database. Therefore, the first link on a web site, which he found to be very important for the calculation of indicators TCI and PR. If they are not correctly selected sites, the crawler will assign you a short code. But do not worry about it. Further relink will also be monitored, and if they are made wisely, it will allow for a system that would make the necessary changes.
- The quality of outbound links from your site no less true for certain subjects. These references should also be similar resources. If your site is about floristry, as he refers to some economic resource, search engines are unlikely to approve it, putting the low rates that the worse impact on the rankings.
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