diff --git a/httpobs/scanner/analyzer/headers.py b/httpobs/scanner/analyzer/headers.py
index db64734c..8a1ab416 100644
--- a/httpobs/scanner/analyzer/headers.py
+++ b/httpobs/scanner/analyzer/headers.py
@@ -4,13 +4,9 @@
 from httpobs.scanner.analyzer.utils import is_hpkp_preloaded, is_hsts_preloaded, only_if_worse
 
 
-# Ignore the CloudFlare __cfduid tracking cookies. They *are* actually bad, but it is out of a site's
-# control.  See https://github.com/mozilla/http-observatory/issues/121 for additional details. Hopefully
-# this will eventually be fixed on CloudFlare's end.
-
-# Also ignore the Heroku sticky session cookie, see:
+# Ignore the Heroku sticky session cookie, see:
 # https://github.com/mozilla/http-observatory/issues/282
-COOKIES_TO_DELETE = ['__cfduid', 'heroku-session-affinity']
+COOKIES_TO_DELETE = ['heroku-session-affinity']
 
 # CSP settings
 SHORTEST_DIRECTIVE = 'img-src'
diff --git a/httpobs/tests/unittests/test_headers.py b/httpobs/tests/unittests/test_headers.py
index fd52ac8f..56dcee35 100644
--- a/httpobs/tests/unittests/test_headers.py
+++ b/httpobs/tests/unittests/test_headers.py
@@ -354,26 +354,6 @@ def test_secure_with_httponly_sessions(self):
                         value='bar')
         self.reqs['session'].cookies.set_cookie(cookie)
 
-        # See: https://github.com/mozilla/http-observatory/issues/121 for the __cfduid insanity
-        cookie = Cookie(name='__cfduid',
-                        comment=None,
-                        comment_url=None,
-                        discard=False,
-                        domain='mozilla.com',
-                        domain_initial_dot=False,
-                        domain_specified='mozilla.com',
-                        expires=None,
-                        path='/',
-                        path_specified='/',
-                        port=443,
-                        port_specified=443,
-                        rest={},
-                        rfc2109=False,
-                        secure=False,
-                        version=1,
-                        value='bar')
-        self.reqs['session'].cookies.set_cookie(cookie)
-
         # See: https://github.com/mozilla/http-observatory/issues/282 for the heroku-session-affinity insanity
         cookie = Cookie(name='heroku-session-affinity',
                         comment=None,