What does the site address mean in the counter logs?

Question

Search Engine Optimization

Periodically, in the reports of the counter there are such visitors, before they were all from the BRICS countries, and now Kazakhstan and the former republics of the USSR have gone
Question - why are such site addresses assigned in a request to my resource? It is clear that these are bots or infected machines, but still

Answer 1

You can advertise in black and in different ways, including this way.
In statistics, as a rule, there are no extra people, webmasters and resource owners go there, who - oh horror - can be told about another office dealing with the so-called. "seo". Well, or push through some other similar resource or service.

Answer 2

This is the so-called refspam. The goal is the transitions of interested webmasters and links from open statistics pages such as Webalizer, Awstats, etc. This is usually done by software. More often in such ways they move all sorts of rubbish, something that rhymes and pharma ...