new hosts appearing between 2013-07-20_0800 and 2013-07-21_0800:
mail.ru                         has IPv4 has IPv6 2a00:1148:1:1322::b0ba (ok) (time=0.212593)
www.bing.com                    has IPv4 has IPv6 2600:1406:1::addf:e8a2 (ok) (time=0.002073), 2600:1406:1::addf:e892 (ok) (time=0.001662)
www.blogspot.com.br             has IPv4 has IPv6 2607:f8b0:400e:c04::bf (ok) (time=0.019785)
www.blogspot.mx                 has IPv4 has IPv6 2607:f8b0:400e:c04::bf (ok) (time=0.021320)
www.daleak.com                  has IPv4 has IPv6 2400:cb00:2048:1::8d65:74d9 (ok) (time=0.001265), 2400:cb00:2048:1::8d65:75d9 (ok) (time=0.012598)
www.freebase.com                has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.023166)
www.mozilla.jp                  has IPv4 has IPv6 2001:200:16a:b::26 (ok) (time=0.202658)
www.musica.uol.com.br           has IPv4 has IPv6 2804:49c:319:430::326 (ok) (time=0.245285)
www.pcinpact.com                has IPv4 has IPv6 2400:cb00:2048:1::6ca2:c94d (ok) (time=0.001450), 2400:cb00:2048:1::6ca2:ca4d (ok) (time=0.001070)
www.seowaps.com                 has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.020262)
www.utah.edu                    has IPv4 has IPv6 2001:1948:414:6::2 (ok) (time=58.422853)

hosts disappearing between 2013-07-20_0800 and 2013-07-21_0800:
www.blogspot.com.es             had IPv4 had IPv6 2607:f8b0:400e:c04::bf  
www.blogspot.fr                 had IPv4 had IPv6 2607:f8b0:400e:c04::bf  
www.blogspot.sg                 had IPv4 had IPv6 2607:f8b0:400e:c04::bf  
www.desura.com                  had IPv4 had IPv6 2406:bd00:de00:de00::10  
www.divxonline.info             had IPv4 had IPv6 2a00:1d70:c01c::229:176  
www.egept-voice.blogspot.com    had IPv4 had IPv6 2607:f8b0:4005:802::100c  
www.enterprise.com              had IPv4 had IPv6 2620:103:e029:1da7::96  
www.iij4u.or.jp                 had IPv4 had IPv6 2001:240:bb81:8500::3:101  
www.maskolis.com                had IPv4 had IPv6 2607:f8b0:400e:c04::79  
www.nist.gov                    had IPv4 had IPv6 2610:20:6005:13::55  
www.opensuse.org                had IPv4 had IPv6 2600:806:310::100  
www.paparasinewslanka.com       had IPv4 had IPv6 2607:f8b0:400e:c04::79  
www.ptcsolution.com             had IPv4 had IPv6 2a01:4f8:101:20a5::2  
www.singtel.com                 had IPv4 had IPv6 2001:c20:2006:3::18  
www.stockholm.se                had IPv4 had IPv6 2a03:c780::80  
www.supportivehands.net         had IPv4 had IPv6 2607:f8b0:400e:c04::79