tordnsel/exitlist-spec.txt
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                         TorDNSEL Exit List Format
 
 TorDNSEL is an implementation of the active testing, DNS-based exit list
 for Tor exit nodes.  The implementation is available at
 
   https://www.torproject.org/tordnsel/dist/
 
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 The design and its rationale were described in the Tor sources, see
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   https://gitweb.torproject.org/tordnsel.git/blob/HEAD:/doc/torel-design.txt
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 This document is an attempt to make sense of the exit list format that
 TorDNSEL publishes without the original TorDNSEL author being around.
 
 
 TorDNSEL publishes its exit test results in a single document with entries
 using the following format.  The document consists of an arbitrary number
 of entries each consisting of four or more lines:  (ExitNode | Published |
 LastStatus | ExitAddress*)*.  In the format below, keywords are written in
 double quotes and spaces and newlines are explicitly marked as SP and NL:
 
   "ExitNode" SP fingerprint NL
 
     The identity of the relay in upper-case hex characters.  This
     fingerprint corresponds to the fingerprint in v2 and v3 network status
     documents as specified in /doc/spec/dir-spec.txt in the Tor sources.
 
   "Published" SP YYYY-MM-DD SP HH:MM:SS NL
 
     The publication time, in UTC, of the most recent relay descriptor that
     was known when the test was initiated.  No further test is initiated
     until the relay publishes a new descriptor.
 
   "LastStatus" SP YYYY-MM-DD SP HH:MM:SS NL
 
     The last time, in UTC, when the relay was seen in a v2 network status
     document.  A relay is discarded from the list if it was not seen in a
     network status for at least 48 hours.
 
   "ExitAddress" SP address SP YYYY-MM-DD SP HH:MM:SS NL
 
     One or more test results for this relay consisting of the found exit
     address and the time, in UTC, when the test was performed.  A test is
     discarded from the list if it is older than 48 hours.