new hosts appearing between 2013-05-20_0800 and 2013-05-21_0800:
icook.tw                        has IPv4 has IPv6 2400:6700:ff00::b022:2e98 (ok) (time=0.124680)
litmus.com                      has IPv4 has IPv6 2001:4801:7901:0:57cc:6871:0:2 (ok) (time=0.053679)
www.balatarin.com               has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.019619)
www.blogspot.com.ar             has IPv4 has IPv6 2607:f8b0:400e:c04::bf (ok) (time=0.019757)
www.blogspot.com.br             has IPv4 has IPv6 2607:f8b0:400e:c04::bf (ok) (time=0.020117)
www.bobagento.com               has IPv4 has IPv6 2400:cb00:2048:1::adf5:3c3d (ok) (time=0.001698), 2400:cb00:2048:1::adf5:3d3d (ok) (time=0.001648)
www.crazydaysandnights.net      has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.020387)
www.google.com.my               has IPv4 has IPv6 2607:f8b0:4005:800::101f (ok) (time=0.001270)
www.imgur.com                   has IPv4 has IPv6 2400:cb00:2048:1::be5d:f704 (ok) (time=0.001513), 2400:cb00:2048:1::8d65:7204 (ok) (time=0.001606), 2400:cb00:2048:1::8d65:7304 (ok) (time=0.001432), 2400:cb00:2048:1::be5d:f404 (ok) (time=0.001724), 2400:cb00:2048:1::be5d:f504 (ok) (time=0.001260), 2400:cb00:2048:1::be5d:f604 (ok) (time=0.001411)
www.life.hu                     has IPv4 has IPv6 2001:4c48:2:268::2:1c (ok) (time=0.185615), 2001:4c48:2:268::1:1c (failed) (errno=64) (time=15.784200)
www.resultsaifi.blogspot.in     has IPv4 has IPv6 2001:4860:4001:803::100a (ok) (time=0.001654)
www.symbols-n-emoticons.com     has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.019858)

hosts disappearing between 2013-05-20_0800 and 2013-05-21_0800:
agh.edu.pl                      had IPv4 had IPv6 2001:6d8:10:1060::6002  
imgur.com                       had IPv4 had IPv6 2400:cb00:2048:1::8d65:7304  
porlaputa.com                   had IPv4 had IPv6 2400:cb00:2048:1::8d65:7612  
www.3arb-news.com               had IPv4 had IPv6 2607:f8b0:400e:c04::79  
www.all4syria.info              had IPv4 had IPv6 2607:f8b0:400e:c04::79  
www.blogspot.com.es             had IPv4 had IPv6 2607:f8b0:400e:c04::bf  
www.blogspot.gr                 had IPv4 had IPv6 2607:f8b0:400e:c04::bf  
www.blogspot.in                 had IPv4 had IPv6 2607:f8b0:400e:c04::bf  
www.book4mark.com               had IPv4 had IPv6 2607:f1c0:1000:603a:a925:4b76:2d17:a013  
www.fussball.de                 had IPv4 had IPv6 2003:2:2:40:62:153:159:88  
www.iij4u.or.jp                 had IPv4 had IPv6 2001:240:bb81:8500::3:101  
www.keepass.info                had IPv4 had IPv6 2a00:1158:0:300:3a3a::1  
www.masr5.com                   had IPv4 had IPv6 2607:f8b0:400e:c04::79  
www.wetter.info                 had IPv4 had IPv6 2003:2:2:40:62:153:159:92  
www.zuhause.de                  had IPv4 had IPv6 2003:2:2:40:62:153:159:92  
zapier.com                      had IPv4 had IPv6 2406:da00:ff00::36e1:9876