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+# Memcached http provider
+
+Publishes challenges into memcached where they can be retrieved by nginx. Allows
+specifying multiple memcached servers and the responses will be published to all
+of them, making it easier to verify when your domain is hosted on a cluster of
+servers.
+
+Example nginx config:
+
+```
+    location /.well-known/acme-challenge/ {
+        set $memcached_key "$uri";
+        memcached_pass 127.0.0.1:11211;
+    }
+```