Data and methodology
Learn where Rankfield's link data comes from, which web graph release it uses, and what the numbers can and cannot tell you.
Site Strength and the referring-domain endpoints read the Rankfield web graph. It is built from public web crawl data: a large sample of the links on the pages those crawls fetched, not a complete index of the web. These pages explain the data so you can use it correctly.
Pages
Get Dataset StatusGet the web graph release Rankfield serves now: its date, build, scoring version and how many domains and links it holds.Coverage and datesUnderstand what the Rankfield web graph covers, how old the data is, and why a domain or a link can be missing.Data FAQAnswers to common questions about Rankfield's Site Strength, referring domains and web graph data.GlossaryDefinitions of the terms used in Rankfield's API answers: Site Strength, referring domain, observations, release and more.