Knocking on IPs: Identifying HTTPS Websites for Zero-Rated Traffic

Figure 2

Results of our Open-Knock method applied on the Tranco top 6000 list, resulting in a total of 3474 websites. Unknown (in) are all predictions where the correct domain name is still in the remaining R, while Unknown (out) is the exact opposite. Unknown (empty) are all the predictions where the resulting R is empty.