TCI (thematic index of citing) - thematic citation index, which shows the credibility of the resource relative to other, similar sites on the subject and is used to rank the sites in the catalog Yandex. Is calculated on a scale of 0 to 10 thousand
Witz (weighted citation index) - a quantitative indicator of the popularity web page or web site is defined as the number of links on that page or site from other web resources, and each link has a "weight" which depends on the 'authority' of the web site on which it is located.
Which data is measured by TCI? When measuring TCI links are taken from only those resources that are indexed and Yandex
he is looking for, then there is only "Russian" Internet. This means that references to Russian resources, for example, the directory Yahoo!, not taken into account when measuring by Yandex TCI.
Which resources can be measured by TCI? TCI can be measured for all the resources that are referenced by any of the scanned by Yandex resources at least once.
Which links do not count in the index? When calculating TCI site does not take into account links with web-boards, forums, online conferences, not moderated directories, and other resources to which anyone can add links without the control of the owner of the resource. Also, when calculating the CY ignored links from sites that are on free hosting, if they are not described in Yandex.Catalog. In other words, all such references are to have a weight of zero and will not be able to raise your.
How can raise the TCI and vic. Most reliable and proven way to raise TCI - registration of the Internet in white catalogs. White directory is a directory that do not require reciprocal links (from your site to them) and which put a direct link to your website. To do this, you can take advantage of special services. For example SeoTorg
It should be noted that this service specializes only in white catalogs, unlike the others, who are not averse and "gray". Grey directories also help to raise the TCI, but require a reciprocal link in return. Place back links or not, it's only yours. But ignoring the rules you create a negative impression about yourself, which will adversely affect your resource.