Can you explain certain rules which you follow in doing link building?

[BangkokDinning]

Can you explain certain rules which you follow in doing link building?

[MVMInfotech18]

Quality of back link(PR, PA, DA must be good)
Relevancy of the content between 2 sites
Proper use of anchor text.
Avoid site-wide links
Avoid links from low-quality sites.

[tomsfashion2019]

Quality of Backlink (PR, PA, DA must be good)
Relevancy of the content between 2 sites
Proper use of Anchor Text
Avoid site-wide links

[RH-Calvin]

Quality and relevancy are the two most important factors for high quality link building. These will help to rank webpages faster and higher in search engines.