http://hctxrvjzfpvmzh2jllqhgvvkoepxb4kfzdjm6h7egcwlumggtktiftid.onion/userstats-relay-country.html?graph=userstats-relay-country&country=er&events=on
These estimates are derived from the number of directory requests counted on directory authorities and mirrors . Relays resolve client IP addresses to country codes, so that graphs are available for most countries. Furthermore, it is possible to display indications of censorship events as obtained from an anomaly-based censorship-detection system (for more details, see this technical report ).