We estimate the number of users by analyzing the requests induced by clients to relays and bridges.
This graph shows the estimated number of directly-connecting clients; that is, it excludes clients connecting via bridges. 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). For further details check the documentation on Reproducible Metrics.
The following events have been manually collected in the metrics-timeline Git repository and might be related to the displayed graph.
Dates | Places/Protocols | Description and Links |
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2016-10-02 to 2016-10-03 | Egypt <OR> Relays |
Reports that direct connections from Egypt are blocked; bridges are required. Maybe be the same as the block beginning 2016-10-25.
OONI report |
2016-09-23 to 2016-11-28 | obfs3 |
Outage of default obfs3 bridges "Unnamed" and "Unnamed" (fingerprint AF9F66B7B04F8FF6F32D455F05135250A16543C9). (Start date not known for sure, though it must have been after 2016-09-23; discussed in non-archived tor-team email.)
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