I always bought nofollow links from *** and ***, as they were the most effective. However, after the last Google update, my site started losing positions, and traffic dropped by 20%. Analysis showed that I had too many SEO links, and I had to add forum links. I purchased them from this service because it has been on the market for a long time, and many marketer acquaintances use it. After 5 months, I managed to restore traffic to previous levels, and in the 6th month of purchases, the site even started to grow. Thus, nofollow links do have an impact on the site's positions.
