支持ipv6+ipv4 在亚太地区速度比较快
sdns://AgMAAAAAAAAAFlsyNjA2OjQ3MDA6NDcwMDo6MTAwMl0AG3NlY3VyaXR5LmNsb3VkZmxhcmUtZG5zLmNvbQovZG5zLXF1ZXJ5
sdns://AgMAAAAAAAAAIFsyNDAwOjg5MDI6OmYwM2M6OTJmZjpmZTI3OjM0NGJdABJkb2gtanAuYmxhaGRucy5jb20KL2Rucy1xdWVyeQ
sdns://AgMAAAAAAAAADFsyNjIwOmZlOjo5XQASZG5zOS5xdWFkOS5uZXQ6NDQzCi9kbnMtcXVlcnk
sdns://AgcAAAAAAAAAFlsyNjA2OjQ3MDA6NDcwMDo6MTAwMV0AIDFkb3QxZG90MWRvdDEuY2xvdWRmbGFyZS1kbnMuY29tCi9kbnMtcXVlcnk
sdns://AgYAAAAAAAAAEFsyNjIwOmZlOjpmZToxMF0AEmRuczkucXVhZDkubmV0OjQ0MwovZG5zLXF1ZXJ5
sdns://AgUAAAAAAAAAFlsyMDAxOjQ4NjA6NDg2MDo6ODg4OF2gHvYkz_9ea9O63fP92_3qVlRn43cpncfuZnUWbzAMwbmgdoAkR6AZkxo_AEMExT_cbBssN43Evo9zs5_ZyWnftEUgalBisNF41VbxY7E7Gw8ZQ10CWIKRzHVYnf7m6xHI1cMKZG5zLmdvb2dsZQovZG5zLXF1ZXJ5