Enter host name or IP address: 2 result(s) for 43.250.12.88
namequery typeresultfirst seenlast seen
b28-yk-player.youku.com. A43.250.12.88[I]
2015-07-21 19:24:072016-08-06 20:58:51
player.youku.com. CNAMEb28-yk-player.YoukU.COM.
2015-07-21 19:24:072016-08-06 20:58:50

WHOIS info for: 43.250.12.88

[ JPNIC database provides information regarding IP address and ASN. Its use
  ]
[ is restricted to network administration purposes. For further
information,  ]
[ use 'whois -h whois.nic.ad.jp help'. To only display English output,     
  ]
[ add '/e' at the end of command, e.g. 'whois -h whois.nic.ad.jp xxx/e'.   
  ]

No match!!

Reference: WHOIS servers of RIRs
  APNIC WHOIS(whois.apnic.net)
  ARIN WHOIS(whois.arin.net)
  RIPE WHOIS(apps.db.ripe.net)
  LACNIC WHOIS(whois.lacnic.net)
  AfriNIC WHOIS(whois.afrinic.net)