Tor Metrics Portal: Network


Relays and bridges in the network


The following graph shows the average daily number of relays and bridges in the network.

Network size graph

Download graph as PDF or SVG.

CSV file containing all data.


Relays with Exit, Fast, Guard, Stable, and HSDir flags


The directory authorities assign certain flags to relays that clients use for their path selection decisions. The following graph shows the average number of relays with these flags assigned.

Relay flags graph

Running Exit Fast Guard Stable HSDir

Download graph as PDF or SVG.

CSV file containing all data.


Relays by version


Relays report the Tor version that they are running to the directory authorities. See the download page and ChangeLog file to find out which Tor versions are stable and unstable. The following graph shows the number of relays by version.

Relay versions graph

Download graph as PDF or SVG.

CSV file containing all data.


Relays by platform


Relays report the operating system they are running to the directory authorities. The following graph shows the number of relays by platform.

Relay platforms graph

Download graph as PDF or SVG.

CSV file containing all data.


Tor Cloud bridges


The following graph shows the average daily number of Tor Cloud bridges in the network.

Tor Cloud bridges graph

Download graph as PDF or SVG.

CSV file containing all data.


Total relay bandwidth in the network


Relays report how much bandwidth they are willing to contribute and how many bytes they have read and written in the past 24 hours. The following graph shows total advertised bandwidth and bandwidth history of all relays in the network.

Relay bandwidth graph

Download graph as PDF or SVG.

CSV file containing all data.


Relay bandwidth by Exit and/or Guard flags


The following graph shows the relay bandwidth of all relays with the Exit and/or Guard flags assigned by the directory authorities.

Relay bandwidth by flags graph

Download graph as PDF or SVG.

CSV file containing all data.


Advertised bandwidth and bandwidth history by relay flags


The following graph shows the advertised bandwidth and bandwidth history of all relays with the Exit and/or Guard flags assigned by the directory authorities. Note that these sets possibly overlap with relays having both Exit and Guard flag.

Advertised bandwidth and bandwidth history by relay flags graph

Download graph as PDF or SVG.

CSV file containing all data.


Number of bytes spent on answering directory requests


Relays running on 0.2.2.15-alpha or higher report the number of bytes they spend on answering directory requests. The following graph shows total written and read bytes as well as written and read dir bytes. The dir bytes are extrapolated from those relays who report them to reflect the number of written and read dir bytes by all relays.

Dir bytes graph

Download graph as PDF or SVG.

CSV file containing all data.


Advertised bandwidth distribution


The following graph shows the distribution of advertised bandwidth in the network. In contrast to the graphs above, the following graph contains no sums of advertised bandwidths, but bandwidths of single relays.

Advertised bandwidth distribution graph

100 (maximum) 99 98 97 95 91 90 80 75 (3rd quartile) 70 60 50 (median) 40 30 25 (first quartile) 20 10 9 5 3 2 1 0 (minimum)

Download graph as PDF or SVG.

CSV file containing all data.


Advertised bandwidth of n-th fastest relays


The following graph shows the advertised bandwidth of the n-th fastest relays in the network.

Advertised bandwidth of n-th fastest relays graph

1 2 3 5 10 20 30 50 100 200 300 500 1000 2000 3000 5000

Download graph as PDF or SVG.

CSV file containing all data.


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.