Google’s John Mueller says the total number of backlinks a website has doesn’t matter at all to the search algorithm.
One good link from a relevant website can be more impactful than millions of low quality links.
This is stated by Mueller during the Google Search Central SEO hangout recorded on February 19.
A site owner submits the following question to Mueller: “What matters most? The number of unique referring backlink domains or the total number of backlinks?”
At times known for his vague answers, Mueller couldn’t be more clear in explaining how little either of those factors matter to Google.