What makes a high-quality backlink?

This can range from authority, relevance, number of backlinks on the page, the page rank, website rank, and of course the volume of traffic it could send to you. A high-quality backlink should be from a trusted, relevant source, with a good following and one that creates great content itself. The link to your site should add value to the page it’s linked from, like further reading on a topic that the website linking to you hasn’t covered in detail.