Nmap scan report for jituancaiyun.com (36.140.97.73) Host is up (0.19s latency). Not shown: 998 closed tcp ports (reset) PORT STATE SERVICE VERSION 53/tcp filtered domain 443/tcp open tcpwrapped Device type: load balancer|firewall Running (JUST GUESSING): F5 Networks TMOS 11.6.X|11.4.X (88%) OS CPE: cpe:/o:f5:tmos:11.6 cpe:/o:f5:tmos:11.4 Aggressive OS guesses: F5 BIG-IP Local Traffic Manager load balancer (TMOS 11.6) (88%), F5 BIG-IP AFM firewall (86%) No exact OS matches for host (test conditions non-ideal). Network Distance: 21 hops TRACEROUTE (using port 995/tcp) HOP RTT ADDRESS 1 0.26 ms 208.76.251.177.rdns.ColocationAmerica.com (208.76.251.177) 2 0.78 ms gw.mcom-colocationamerica.com (208.64.231.81) 3 0.77 ms r2b4.n1.p1401.lax.multacom.net (64.69.46.11) 4 ... 5 0.73 ms be3243.ccr41.lax05.atlas.cogentco.com (154.54.27.118) 6 0.91 ms hu0-11-0-3.ccr41.lax05.atlas.cogentco.com (38.104.84.249) 7 0.83 ms 223.120.6.217 8 ... 9 186.65 ms 221.183.89.182 10 181.61 ms 221.183.89.33 11 ... 20 21 192.96 ms 36.140.97.73 OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 26.42 seconds