A huge database of 82 sites, thanks to which you can place a link to your own site.
On each site from the database you need to place it in your profile, this is how you can leave a link and enter the desired anchor in additional fields.

50% Dofollow list and 50% Nofollow. Closed links are also perfectly indexed by all robots, they remember them and add weight to the site.
As a result, after posting and waiting 1-3 weeks (possibly) a month, we get an increased TRUST of the site, an increase in the IRS (search engine trust in the site), improved and accelerated positions with new pages.