Background
Domain authority is a relative score that estimates how likely a domain is to rank in search results. The score blends raw link signals (referring domains, total backlinks) with popularity proxies and historical signals like domain age. It's a useful first filter when scoring prospects, vetting guest-post sites, or comparing competitors.
RankParse computes authority scores from our link graph (the same dataset used by independent SEO researchers) and enriches each lookup with the Tranco popularity rank (top 100k) and registration data from RDAP.