Add comments

x/examples/find-strategy/main.go

@@ -321,6 +321,36 @@ func main() {
 		fmt.Printf("; status=ok (%v) ✅\n", ips)
 	}
 
+	/*
+		Scoring
+		- Control (tests if the client works at all): get NS for ".". If fails: -10 (BROKEN)
+		- General injection test (tests if the injection depends on the resolver): [testDomain NS]. If error or answer: -1. Save [type value] as fingerprint
+			- Test transports: UDP, TCP, TLS
+			- For plaintext, test techniques: mix case, split
+		- Try changing case
+
+		Hostmap should not go through scoring at first. We shouldn't use it if not needed. Also, it only helps A/AAAA, it doesn't work with NS, SOA, etc.
+
+		Lookup (domain A/AAAA) at root resolver (doesn’t apply to DoH and system resolver)
+		no error: 0
+		error: -1
+		has answer: -1
+
+		Lookup (domain, NS) (breaks with hostmap)
+		expected answer: +1
+		unknown answer: 0
+		bad answer or no answer: -1
+		Lookup (domain, CNAME) (breaks with hostmap)
+		expected answer: +1
+		unknown answer: 0
+		Lookup IP, then reverse IP. A and AAAA
+		expected domain: +1
+		unknown domain or no answer: 0
+		Is Private?
+		public: 0
+		private: -1
+	*/
+
 	// TODO:
 	// Add recursive resolver.
 	// Save RTT for sorting.