Flutter/Dart DNS resolving timeout

http.get('https://my-domain.com');

I/flutter ( 5767): SocketException: Failed host lookup: 'my-domain.com' (OS Error: No address associated with hostname, errno = 7)

If I add .timeout(Duration(seconds: 30)) to future, it applied to connection+dns+request send+response

I only want to set timeout for DNS resolving