I've been noticing this for several years. A significant enough bulk of my logged traffic to my publishing label is this kind of spam that Ukraine shows up as m

I've been noticing this for several years. A significant enough bulk of my logged traffic to my publishing label is this kind of spam that Ukraine shows up as my second largest source of traffic. My 9th most frequent referrer is, indeed, semalt.com, as mentioned in the article. Generally, unless there's a major traffic spike from one source or another, I largely consider my traffic reports complete fiction because of this level of spam referrers.