As near as I can tell, these are the top 1,000,000 domains referred to by other websites they crawled. The report is described as "The million domains we find with the most referring subnets"[1] and a referring subnet…
As near as I can tell, these are the top 1,000,000 domains referred to by other websites they crawled. The report is described as "The million domains we find with the most referring subnets"[1] and a referring subnet…