This post refers to an old set of outdated information. The system extracting those links was the precursor of the current web domain ranking in https://varocarbas.com/domain_ranking/ CLARIFICATION: this has nothing to do with marketing, SEO or paid anything. The sole purpose of this system now and ever has been to show my software development skills and related issues (e.g., big system running on very restricted hardware). All the displayed information is meant to show the actual reality as objectively as possible. There is only one way to be part of the aforementioned ranking or to get a better/worse position in it: the system (crawling bots, ranking algorithms, correction subsystems, etc.) voluntarily deciding so.