[tor-bugs] #33010 [Metrics/Ideas]: Monitor cloudflare captcha rate: do a periodic onionperf-like query to a cloudflare-hosted static site

Tue Mar 31 15:59:59 UTC 2020

#33010: Monitor cloudflare captcha rate: do a periodic onionperf-like query to a
cloudflare-hosted static site
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 Reporter:  arma                       |          Owner:  metrics-team
     Type:  task                       |         Status:  new
 Priority:  Medium                     |      Milestone:
Component:  Metrics/Ideas              |        Version:
 Severity:  Normal                     |     Resolution:
 Keywords:  network-health gsoc-ideas  |  Actual Points:
Parent ID:                             |         Points:
 Reviewer:                             |        Sponsor:
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Comment (by cypherpunks):

 Replying to [comment:17 woswos]:

 > ''Blocking via an unsolvable CAPTCHA''
 > https://patents.google.com/patent/US9407661

 yes, they own a so called Troll Captcha patent and recaptha effectively
 presents you this type of unsolvable captcha. or by connecting through
 exit node, just the Message of "generate an unsolvable challenge-response
 test based on identifying the request as being associated with the
 malicious activity."

 While "associated with the malicious activity" is already an high amount
 of requests that any node is processing.

 But did you notice cloudflare seems to have changed captcha provider from
 recaptcha to ?

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33010#comment:18>
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