DA + PA + are very famous metrics in the SEO world, but they are no longer strong, they are simply not a good parameter for a powerful backlink, Ahrefs' DR and UR metrics are the most reliable today, we speak this from the experience of those works ranking websites every day and successfully!
Backlinks on farms like Mercado Livre still sell link farms, which at best will give you the illusion of efficiency, but will never take you to the first page, but it is very common to have your site punished shortly after , usually the cost to recover a site is higher than restarting another site from scratch. Think: if it were that easy, why would big companies continue to spend money on Adwords? why no Digital Marketing Guru recommends low cost backlinks? Some SEO techniques that no longer work:
Forum links
Backlinks that are not in Portuguese
Footer Link
Links in comments either in Posts or Articles
In all PBN domains we make a careful analysis of the links it receives, history, referral links and if it is really spam or not.
