new hosts appearing between 2012-03-22_0800 and 2012-03-23_0800:
kh.edu.tw                       has IPv4 163.32.250.6 has IPv6 2001:288:8201:2::21 (ok)
www.cht.com.tw                  has IPv4 202.39.225.136 has IPv6 2001:b000:180:3::136 (ok)
www.techtudo.com.br             has IPv4 186.192.82.155 has IPv6 2804:294:4000:8000::5 (ok)
www.webtaller.com               has IPv4 195.78.231.41 has IPv6 2a00:1d70:c01c::231:41 (ok)

hosts disappearing between 2012-03-22_0800 and 2012-03-23_0800:
entretenimento.uol.com.br       had IPv4 200.147.67.181, 200.221.8.140 had IPv6 2804:49c:319:430::319 
www.blogfolha.uol.com.br        had IPv4 200.147.99.179 had IPv6 2804:49c:319:430::331 
www.cuni.cz                     had IPv4 195.113.89.35 had IPv6 2001:718:1e03:622::12 
www.forumprofi.de               had IPv4 82.96.64.20 had IPv6 2001:1bc0:af::b1 
www.ncsu.edu                    had IPv4 152.1.226.10 had IPv6 2001:470:e2ba::10