new hosts appearing between 2012-04-12_0800 and 2012-04-13_0800:
www.bookcu.com                  has IPv4 65.49.80.162 has IPv6 2001:470:1:b4::a1:a (ok)
www.justice.cz                  has IPv4 194.213.41.145 has IPv6 2001:af0:ffee:200::c2d5:2991 (ok)
www.kuleuven.be                 has IPv4 134.58.64.12 has IPv6 2001:6a8:2900:1001::80:12 (ok)
www.photoshoptutorials.ws       has IPv4 199.27.135.215, 199.27.134.215 has IPv6 2400:cb00:2048:1::c71b:86d7 (ok), 2400:cb00:2048:1::c71b:87d7 (ok)

hosts disappearing between 2012-04-12_0800 and 2012-04-13_0800:
getlikeseasy.com                had IPv4 216.70.96.141 had IPv6 2400:cb00:2048:1::adf5:3c73 , 2400:cb00:2048:1::adf5:3c29 
www.cdn1-creditneto.net         had IPv4 213.186.33.40 had IPv6 2001:41d0:1:1b00:213:186:33:40 
www.copacet.com                 had IPv4 23.21.201.160 had IPv6 2406:da00:ff00::1715:c9a0 
www.ehu.es                      had IPv4 158.227.0.65 had IPv6 2001:720:1410::65 
www.forumprofi.de               had IPv4 82.96.64.20 had IPv6 2001:1bc0:af::b1 
www.ibiblio.org                 had IPv4 152.19.134.40 had IPv6 2610:28:3090:3000:0:bad:cafe:23 
www.meo.pt                      had IPv4 83.240.175.138 had IPv6 2a02:818:2021:6240:83:240:175:138