[tor-bugs] #31701 [Circumvention/Obfs4]: Reachability tests for new obfs4 bridges

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#31701: Reachability tests for new obfs4 bridges
-------------------------------------------------+-------------------------
 Reporter:  cohosh                               |          Owner:  cohosh
     Type:  defect                               |         Status:
                                                 |  needs_review
 Priority:  Medium                               |      Milestone:
Component:  Circumvention/Obfs4                  |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  reachability, measurement,           |  Actual Points:
  s30-o23a2                                      |
Parent ID:  #31280                               |         Points:
 Reviewer:  phw                                  |        Sponsor:
                                                 |  Sponsor30-can
-------------------------------------------------+-------------------------

Comment (by sigvids):

 A Twitter user says that if you get 10 obfs4 bridges from BridgeDB, you
 can likely find one that works:

 https://twitter.com/yeahwu404/status/1241753415337701376

 Google Translate: "The obfs4 bridge broadcast by Tor currently is still
 available. Fill in about 10 and basically you can connect, everyone can
 try. Get the bridge on the following page:"

 This suggests the BridgeDB scraping is not perfect.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/31701#comment:10>
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