The most interesting robot crawlers working for Yandex

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Each robot has its own schedule for indexing Internet resources. The working hours of different robots with each of the sites in the search engine database may not coincide.

In addition to the main robots, the search engine has additional ones that regularly visit the pages of Internet resources to check their availability. For example, these are the robots of Yandex.Catalog and the Yandex advertising network.

The Yandex search engine focuses on the cell phone database following key indicators of external optimization:

TIC (publicly available thematic citation index) — shows the average number of links that access the site. Does not directly affect the ranking results, is used to determine positions in the thematic group of Yandex.Catalog. Used in the promotion of Internet resources.

wCI (weighted citation index) is a special algorithm designed to calculate the number of external links to a site. It is of primary importance when ranking pages by a search engine.

Site presence in Yandex.Catalog .

The total number of site pages that have been indexed .

Frequency of indexing the content of an Internet resource.

The presence and absence of links from the site , the presence of the site in search filters.

The citation index is the basis of the subject and weighted citation index.