Backlinks from authoritative websites (e.g., popular news sites, educational institutions) are more valuable. Links from these sites greatly increase the credibility of your site. totoonepick
Links from websites that cover topics related to your site are more valuable. For example, if a travel blog links to your site that provides travel information, this is a highly relevant backlink. totolas
Links are more valuable when they are at the top of the page or in a contextually important part. Anchor text (text used in the link) should also be relevant and natural. blacktosino
Search engines prefer a natural link profile, which means if you suddenly get a lot of backlinks or if your links look artificial, you may be evaluated negatively by search engines. Seastory