Tor Metrics
  • Metrics
  • Home
  • Users
  • Servers
  • Traffic
  • Performance
  • Onion Services
  • Applications
  • More
  • News
  • Sources
  • Services
  • Development
  • Research
  • About
Tor Metrics
  • Home
  • Users
  • Servers
  • Traffic
  • Performance
  • Onion Services
  • Applications
  • Home
  • Sources

Sources #

You're a data person and only trust the statistics that you doctored yourself? Here's all the data right from the source, doctor.

Main sources #

We get most of our data from the services below.

  • CollecTor collects and archives data from various nodes and services in the public Tor network.
  • Statistics used for visualizations on this site are available in the CSV format.
  • Onionoo provides current and historical data about relays and bridges via a web-based API.
  • Reproducible Metrics specifies how to reproduce the data behind the graphs on this site.

Other sources #

The following tools perform active measurements in the Tor network or provide other Tor network data.

  • Exitmap is a fast and extensible scanner for Tor exit relays.
  • TorDNSEL publishes lists of IP addresses of multi-homed Tor exits.
  • OnionPerf measures Tor performance with a set of utilities and Python scripts.
  • OONI detects censorship, surveillance, and traffic manipulation on the internet.

New sources #

We have written guidelines for Tor developers that would like metrics collected by their service to be integrated with Tor Metrics.

Specifications #

The following specification documents are available for Tor network data.

  • Tor directory protocol, version 3
  • Tor directory protocol, version 2
  • Tor directory protocol, version 1
  • Bandwidth files
  • TorDNSEL exit lists
  • Snowflake statistics
  • BridgeDB metrics
  • Bridgestrap statistics
  • Tor bridge descriptors
  • Tor web server logs

© 2009–2023 The Tor Project

Contact

This material is supported in part by the National Science Foundation under Grant No. CNS-0959138. Any opinions, finding, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. "Tor" and the "Onion Logo" are registered trademarks of The Tor Project, Inc.. Data on this site is freely available under a CC0 no copyright declaration: To the extent possible under law, the Tor Project has waived all copyright and related or neighboring rights in the data. Graphs are licensed under a Creative Commons Attribution 3.0 United States License.