Next yandeksovy bot starts to rank sites, on what principle, simply on the number of words relevant search query, that is, if earlier held that the searches could be stupid to register across the entire site, to the extent that the text is absolutely not readable, and it passed, the site soon became the best in Yandex, now yandeksovy bot also learns he can now identify those sites where the text is unreadable, then If there is more than 80 percent of the text refers to the search query, then pushes Yandex this site is far to the margins, also yandeksovy Bot has learned to identify and hidden text, text that spells out the site and background color was not visible to visitors. Yandeksovy bot now becoming smarter and smarter, he can go to any website, say your site by sheer luck was in the top, you have a full book, and here again your site is not quite in Yandex, is simply yandeksovy bot found your site a mirror of another site that does not exist, and all you are flying out top for a long time. What's mistake, who is to blame, in support of yandeksovoy say sorry bot made a mistake, let's punish the bot. Now yandeksovy bot yet learned to determine the quality of options, meaning he how many links appear for a day on your site, and if he thinks that too many links to your site appeared today, with greetings from Yandex, it deletes all the references that are already indexed your site from its database, which means that you are again far in the search results where nobody goes, and not sending.