Once at the beginning of development of the Internet the search algorithms were very primitive. In those days traditional business spent huge amounts of money for advertizing. Nobody knew that it is possible to use quite successfully holes in algorithms of searchers and with the minimum attachments to be advertized in network. And here some enthusiasts did the websites, used different tricks and left in a delivery top to earn quite good money.
However over time the situation changed. Search engines began to monetize the services, acquired serious budgets that allowed them to attract for work of good specialists. They also helped to develop better ranking algorithms which all this time brought closer conditions of fight for leadership in delivery to traditional ways of promotion. And today wins any more not against the most cunning, and the most experienced, the most talented and the one who really wants to help the end user.
The problem is that algorithms of search engines never were perfect and now those are not too. They constantly are improved, appear new algorithms, old are improved. Therefore periodically stirs up delivery that leads to loss of positions of some websites. It touches many webmasters, they lose the income. Anywhere also such people who constantly look for ways of a circumvention of rules of searchers did not disappear. Attempts to leave in a delivery top in circumvention of rules will always be shown, and it will lead also to improvement of algorithms.
Earlier ranging of the websites on the basis of the number of links was considered as the most successful solution. And the truth - the more links conducts on the website, the it holds big authority. However there is one shortcoming. The fact is that it is impossible to understand what link appeared naturally and what was it is frankly forged for deception of search engines. There were attempts of improvement of algorithms, but all the same it was impossible to achieve the best results at anybody. As a result it was necessary to think up something more essential.
And it appeared. Now search engines try to use information on whether visitors are happy with the website or is not present. It is called behavioural factors. That is to define whether the website is popular and whether he deserves high positions it is necessary to peep at visitors. If people actively follow the links to pages of the website, spend there much time, fill some forms, subscribe to newsletter then the website is pleasant to people. And it already is a reason for increase in its positions in delivery.
Here so today search engines also work. To be beaten out in a top of delivery it is necessary to do everything possible that the website was pleasant to audience. Of course, it is necessary to acquire also links, they still remain important and are used when ranging. But behavioural factors nevertheless are defining.