RD is the best metric to use when buying niche edits because it measures the link profile’s strength. RD considers both the number and quality of backlinks to a website, which is essential for assessing the amount of value a link will provide. High RD scores indicate that a website has been linked to from high-quality, authoritative websites, which can help to boost a website’s visibility and ranking. RD should be used as the primary metric for determining whether or not a niche edit is worth investing in.