The search engine might work as good as it can, there still are these small annoying things that can easily damp the user's good spirits and significantly shatter his loyalty to a specific SE. Here belongs, e.g., the danger of contracting a computer virus, the presence of irritating and obtrusive ads etc.

Whereas the amount of advertisments or dangerous scripts on websites is not for the browsers to control, the concentration of objectionable content in the output is totally in their power. So, if the websites in the output abound with annoying factors, the search engine would only benefit from ranking such sites far below high-quality safe ones.

Most analyzers of this group make use of specific techniques developed by "Ashmanov & Partners" for detecting ads, pornography, computer viruses etc. To make the results more lucid, we sought out the markers, so that the probability of undesirable results was higher than usual.