new hosts appearing between 2012-02-07_0800 and 2012-02-08_0800:
economia.uol.com.br             has IPv4 200.221.8.118, 200.147.67.159 has IPv6 2804:49c:319:430::103 (ok)
www.active24.cz                 has IPv4 81.95.96.6 has IPv6 2a02:4a8:ac24:100::96:6 (ok)
www.celebridades.uol.com.br     has IPv4 200.147.3.199, 200.147.35.224 has IPv6 2804:49c:319:430::326 (ok)
www.clix.pt                     has IPv4 195.23.128.83 has IPv6 2001:1588:4001::2 (ok)
www.cuni.cz                     has IPv4 195.113.89.35 has IPv6 2001:718:1e03:622::12 (ok)
www.nihon-u.ac.jp               has IPv4 202.214.209.135 has IPv6 2001:240:bb82:1013::93 (ok)
www.novinky.cz                  has IPv4 77.75.76.7 has IPv6 2a02:598:2::7 (ok)
www.publico.pt                  has IPv4 195.23.128.85 has IPv6 2001:1588:4001::1 (ok)
www.sitesketch101.com           has IPv4 199.27.135.16, 173.245.60.82 has IPv6 2400:cb00:2048:1::c71b:8710 (ok), 2400:cb00:2048:1::adf5:3c52 (ok)
www.softlayer.com               has IPv4 66.228.118.51 has IPv6 2607:f0d0:1000:11:1::1 (ok)
www.worldstream.nl              has IPv4 93.190.136.5 has IPv6 2a00:7c80::2 (ok)

hosts disappearing between 2012-02-07_0800 and 2012-02-08_0800:
www.sysu.edu.cn                 had IPv4 202.116.64.9 had IPv6 2001:250:3002:10::9