Analyze incoming links and internal link structure . You need to view incoming links in Yandex.Webmaster (Site indexing - Incoming links), how other websites link to you, whether there are many keywords in the links and text. Google Search Console allows you to see the organization of internal links (Search traffic - Internal links). Thanks to this, you can find Yandex search spam and study the structure of the site.
Use special programs . They give you an approximate idea of how well the site is optimized.
The spammer distinguishes three types of Internet pages:
Unavailable . These are web pages that cannot be modified. They are inaccessible. The spammer cannot influence the outgoing links.
Available . They are maintained by marketing list of senior homes other people (most likely, those who are not spammers). However, spammers can change them with certain restrictions. For example, they can insert a message into the guestbook that includes a link to a site where there is search spam. Since filtering of available pages is usually not direct, we can note that the supply of available pages for spammers is limited.
Own . These are maintained by the spammer and therefore have full control over their content. Such web pages are called spam farms. The spammer is primarily focused on increasing the weight of one or many of his pages. To make this easier to understand, let's assume there is a page t. In addition, there are certain maintenance costs (domain registration, web hosting) associated with the spammer's own web pages. In this regard, we can say that the spammer has a limited number of such pages. The exception is the main page.
Taking this model into account, we will discuss three popular algorithms that are based on reference information used to evaluate the quality of results.
Technical literacy
Source: unsplash.com
HITS
The original HITS algorithm was designed to rank web pages with a specific topic focus. But the algorithm is typically applied to all web pages to find the core and understand how the results affect each page.
According to the circular definition of HITS, top weight pages are those that point to many other authoritative web pages, while high weight authority pages are those that are linked to by top weight pages. A search engine that uses the HITS page ranking algorithm as its search result returns pages with the highest weight and authority.
cnn.com or www.mit.edu
It is easy to spam high-weight web pages by adding an outgoing link to many authoritative pages known to the world, such as www.cnn.com or www.mit.edu . That is, a spammer must add many outgoing links to an authoritative page to increase its weight.
Building a good reputation is more difficult because it requires a site to have numerous incoming links from pages with supposedly high authority. A spammer can make his page more authoritative (by adding numerous outgoing links to it) and then link from these pages to his main web page.
Links from accessible pages with good authority can increase the reputation of the main page and thus promote it. Therefore, the rule "the more, the better" should be followed. If the spammer's budget is limited, he should link from all his accessible web pages to his main page. On his own pages that are not the main ones, it is also worth placing links to the maximum number of other (popular) pages with a good reputation.