Whether one launches a website or maintains it, one of the most relevant factors determining the site's ability to attain and stay at high positions in SERPs is whether the search engines' crawlers can find backlinks set up at other domains for the site's benefit. Much like anything else that ultimately contributes to a website's standing in SERPs, whether the site's currently amassed collection of backlinks successfully results in higher positions for it is not a simple matter of quantity. The links have to be present on websites that are in good standing with the audiences interested in the industry niche that the sites involved serve in order to be seen by the algorithm as "high-quality backlinks."
Many different rubrics are considered by the algorithm when assessing whether a website's backlink profile should be considered indicative that it is quite viable as a website for its intended audience. SEO-marketing tools like Semrush attempt to predict this by reporting to its users a "Domain Authority" rating calculated from its own algorithms, which attempt to simulate the unknown processes used by Google and other search engines for their ranking procedures. Both Google and SEO utilities therefore determine whether the backlinks are present on a broad variety of high-traffic websites as naturally occurring parts of page content that relates closely to the subject matter of what the backlinks are pointing to.
Google will penalize the ranking value of backlinks for any reason that might make them look as though they did not come about organically. For example, the page hosting the backlink may not be a valuable page of content in its own right; rather, it may be a featureless collection of links set up for the purpose of forcibly redirecting Google's crawlers. Since backlinks have to look as though they are only there because the owners of those external sites discovered the website on their own, their "SEO Juice" value will not be counted as heavily if they are marked as financially sponsored content. Also, the website should never have outgoing links pointing to the very URLs that have backlinks for it. For more information click here https://www.reddit.com/r/SEO/comments/lhkarp/15backlinkfactorsthatyouneedtokeepin_mind/.