HTTP/1.1 200 OK Date: Mon, 23 Sep 2019 04:02:22 GMT Content-Length: 0 Connection: keep-alive Server: Microsoft-IIS/8.5 X-Powered-By: ASP.NET X-Powered-By: ARR/2.5 X-Powered-By: ASP.NET X-Ser: BC72_dx-lt-yd-zhejiang-huzhou-3-cache-3, BC233_US-Colorado-Denver-1-cache-2, BC131_US-Texas-Dallas-1-cache-1 X-Cache: MISS from BC131_US-Texas-Dallas-1-cache-1(baishan)