Keep your backlink analysis clean by using Ahrefs’ "Best links" exclusion list...

https://stateofseo.com/how-do-i-know-if-a-domain-is-a-pbn-network-site/

Keep your backlink analysis clean by using Ahrefs’ "Best links" exclusion list to hide spammy backlinks. Since Ahrefs doesn’t provide a spam score, this filter helps you focus on quality links only