{
  "is": "system",
  "title": "Network Experiments",
  "permalink": "https://torprojectstatus.org/affected/network-experiments/",
  "status": "ok", 
  "pages": [
      {
        "is": "page",
        "title": "Tor network with congestion control",
        "createdAt": "2022-05-03 16:00:00 +0000 UTC",
        "lastMod": "2026-06-02 16:38:52 -0400 -0400",
        "permalink": "https://torprojectstatus.org/experiments/2022-05-03-congestion-control/",
        "filename": "2022-05-03-congestion-control.md",
        "summary": "What changed? We started deploying congestion control on the live Tor network.\nUsers of Tor versions 0.4.7.5-alpha and above will experience faster performance when using Exits or Onion Services that have upgraded to 0.4.7.5-alpha and above. This faster performance will also increase the Advertised Bandwidth of relays, similar to our previous flooding experiments. Thus, the overall capacity of the network will appear to increase on our network metrics.\nAs more clients upgrade, particularly after a Tor Browser Stable release with 0."
      }
    ,
      {
        "is": "page",
        "title": "Relay speed test",
        "createdAt": "2021-09-23 08:00:00 +0000 UTC",
        "lastMod": "2026-06-02 16:38:52 -0400 -0400",
        "permalink": "https://torprojectstatus.org/experiments/2021-09-23-relay-speed-test/",
        "filename": "2021-09-23-relay-speed-test.md",
        "summary": "What changed? We are sending short bursts of traffic through every relay, to make the relay capacity estimates more accurate. See the mail thread on tor-relays for more information.\nWhen did it start? Around 2021-09-22 18:00:00 UTC.\nWhen did it stop? Around 2021-10-07 11:00:00 UTC.\nWhat potential problems to look for, and how to report them? Relays with a more accurate view of their own bandwidth could attract higher traffic load, which could expose other configuration issues (like not enough file descriptors available or not enough memory), so be sure to watch your relay\u0026rsquo;s logs for issues."
      }
    ,
      {
        "is": "page",
        "title": "Relay speed test",
        "createdAt": "2021-08-26 08:00:00 +0000 UTC",
        "lastMod": "2026-06-02 16:38:52 -0400 -0400",
        "permalink": "https://torprojectstatus.org/experiments/2021-08-26-relay-speed-test/",
        "filename": "2021-08-26-relay-speed-test.md",
        "summary": "What changed? We are sending short bursts of traffic through every relay, to make the relay capacity estimates more accurate. See the mail thread on tor-relays for more information.\nWhen did it start? Around 2021-08-25 17:00:00 UTC.\nWhen did it stop? Around 2021-09-08 13:00:00 UTC.\nWhat potential problems to look for, and how to report them? Relays with a more accurate view of their own bandwidth could attract higher traffic load, which could expose other configuration issues (like not enough file descriptors available or not enough memory), so be sure to watch your relay\u0026rsquo;s logs for issues."
      }
    ,
      {
        "is": "page",
        "title": "Tor network latency measurements",
        "createdAt": "2021-06-11 08:00:00 +0000 UTC",
        "lastMod": "2026-06-02 16:38:52 -0400 -0400",
        "permalink": "https://torprojectstatus.org/experiments/2021-06-11-network-latency-measurements/",
        "filename": "2021-06-11-network-latency-measurements.md",
        "summary": "What changed? We are running wide-scale measurements of latencies between relays on the Tor network for an estimated 1-2 months (using many short-lived circuits which will carry a very small amount of traffic).\nMore details and updates available online and on the tor-relays@ email list.\nWhen did it start? Around 2021-06-10 16:00:00 UTC.\nWhen did it stop? Around 2021-12-14 00:00:00 UTC.\nWhat potential problems to look for, and how to report them?"
      }
    ,
      {
        "is": "page",
        "title": "Relay speed test",
        "createdAt": "2021-05-28 16:00:00 +0000 UTC",
        "lastMod": "2026-06-02 16:38:52 -0400 -0400",
        "permalink": "https://torprojectstatus.org/experiments/2021-05-28-relay-speed-test/",
        "filename": "2021-05-28-relay-speed-test.md",
        "summary": "What changed? We are sending short bursts of traffic through every relay, to make the relay capacity estimates more accurate. See the mail thread on tor-relays for more information.\nWhen did it start? Around 2021-05-17 16:00:00 UTC.\nWhen did it stop? Around 2021-06-05 00:00:00 UTC\nWhat potential problems to look for, and how to report them? Relays with a more accurate view of their own bandwidth could attract higher traffic load, which could expose other configuration issues (like not enough file descriptors available or not enough memory), so be sure to watch your relay\u0026rsquo;s logs for issues."
      }
    
  ]
}