HTTP/1.1 200 OK Content-Type: text/html; charset=UTF-8 Connection: keep-alive Age: 47681 Server: openresty Date: Sun, 09 Feb 2020 10:38:51 GMT Powered-By-ChinaCache: MISS from BGP-YZ-b-D64 Powered-By-ChinaCache: HIT from CNC-WB-c-D10 Vary: Accept-Encoding Expires: Mon, 10 Feb 2020 10:38:51 GMT Content-Length: 0 Last-Modified: Sun, 09 Feb 2020 10:38:51 GMT Accept-Ranges: bytes CACHE: TCP_REFRESH_MISS CC_CACHE: TCP_HIT