new hosts appearing between 2013-07-21_0800 and 2013-07-22_0800:
engageforagencies.com           has IPv4 has IPv6 2001:4860:4802:32::15 (ok) (time=0.019978), 2001:4860:4802:34::15 (ok) (time=0.019620), 2001:4860:4802:36::15 (ok) (time=0.020545), 2001:4860:4802:38::15 (ok) (time=0.020695)
www.akhbarona.com               has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.019805)
www.blogspot.co.at              has IPv4 has IPv6 2607:f8b0:400e:c04::bf (ok) (time=0.019918)
www.blogspot.co.il              has IPv4 has IPv6 2607:f8b0:400e:c04::bf (ok) (time=0.019584)
www.blogspot.com.ar             has IPv4 has IPv6 2607:f8b0:400e:c04::bf (ok) (time=0.020192)
www.blogspot.com.au             has IPv4 has IPv6 2607:f8b0:400e:c04::bf (ok) (time=0.021635)
www.blogspot.com.es             has IPv4 has IPv6 2607:f8b0:400e:c04::bf (ok) (time=0.023537)
www.claimbrand.com              has IPv4 has IPv6 2607:f1c0:1000:4001:1176:8a6a:84e:381d (ok) (time=0.065948)
www.divxonline.info             has IPv4 has IPv6 2a00:1d70:c01c::229:176 (ok) (time=0.175977)
www.efytimes.com                has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.019802)
www.encyclopediadramatica.se    has IPv4 has IPv6 2400:cb00:2048:1::6ca2:ca51 (ok) (time=0.001287), 2400:cb00:2048:1::6ca2:c951 (ok) (time=0.001406)
www.enterprise.com              has IPv4 has IPv6 2620:103:e029:1da7::96 (ok) (time=6.652446)
www.freestuff.gr                has IPv4 has IPv6 2a01:4f8:121:1262::98 (ok) (time=0.169284)
www.hekko.pl                    has IPv4 has IPv6 2a02:ee0:3::5:1 (ok) (time=0.184482)
www.imperial.ac.uk              has IPv4 has IPv6 2001:630:12:600:1::107 (ok) (time=0.148517)
www.itasoftware.com             has IPv4 has IPv6 2607:f8b0:4005:802::1004 (ok) (time=0.001475)
www.korben.info                 has IPv4 has IPv6 2400:cb00:2048:1::c629:bd11 (ok) (time=0.001415), 2400:cb00:2048:1::c629:b911 (ok) (time=0.001633), 2400:cb00:2048:1::c629:ba11 (ok) (time=0.001341), 2400:cb00:2048:1::c629:bb11 (ok) (time=0.001201), 2400:cb00:2048:1::c629:bc11 (ok) (time=0.001521)
www.maskolis.com                has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.020379)
www.nist.gov                    has IPv4 has IPv6 2610:20:6b01:4::204 (ok) (time=0.094348)
www.noticiasautomotivas.com.br  has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.019631)
www.perutops.com                has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.021441)
www.photoshoptutorials.ws       has IPv4 has IPv6 2400:cb00:2048:1::8d65:7d72 (ok) (time=0.001487), 2400:cb00:2048:1::8d65:7e72 (ok) (time=0.002154)
www.ptcsolution.com             has IPv4 has IPv6 2a01:4f8:101:20a5::2 (ok) (time=0.169153)
www.qiq.ru                      has IPv4 has IPv6 2001:470:1f15:700::2 (ok) (time=0.156430)
www.rankik.com                  has IPv4 has IPv6 2607:f1c0:1000:60e0:7992:97f7:61b2:2814 (ok) (time=0.066008)
www.singtel.com                 has IPv4 has IPv6 2001:c20:2006:3::18 (ok) (time=0.194319)
www.socialsecurity.gov          has IPv4 has IPv6 2001:1930:e03::aaaa (ok) (time=0.117803), 2001:1930:c01::aaaa (failed) (errno=64) (time=75.001171)
www.ssa.gov                     has IPv4 has IPv6 2001:1930:c01::aaaa (failed) (errno=64) (time=75.000810), 2001:1930:e03::aaaa (ok) (time=0.091699)
www.ssc-cr.org                  has IPv4 has IPv6 2607:f878:3:1d4::3 (ok) (time=0.091845)
www.tuspelislatino.com          has IPv4 has IPv6 2607:f8b0:400e:c04::79 (ok) (time=0.019967)

hosts disappearing between 2013-07-21_0800 and 2013-07-22_0800:
atw.hu                          had IPv4 had IPv6 2a01:270::5  
www.aliceadsl.fr                had IPv4 had IPv6 2a01:e0c:1:1599::1  
www.arab-lady.com               had IPv4 had IPv6 2607:f8b0:400e:c04::79  
www.blogspot.mx                 had IPv4 had IPv6 2607:f8b0:400e:c04::bf  
www.degreetrip.com              had IPv4 had IPv6 2607:f0d0:1104:4:29::43  
www.detik.com                   had IPv4 had IPv6 2402:a000:a000::34  
www.ericsson.com                had IPv4 had IPv6 2600:1406:1::addf:e8a8  
www.google.com.mm               had IPv4 had IPv6 2607:f8b0:4005:802::101f  
www.hotmart.com.br              had IPv4 had IPv6 2406:da00:ff00::1715:60e0  
www.mozilla.jp                  had IPv4 had IPv6 2001:200:16a:b::26  
www.mybloggerlab.com            had IPv4 had IPv6 2607:f8b0:400e:c04::79  
www.q22w.com                    had IPv4 had IPv6 2001:49f0:d000:2::d  
www.symbols-n-emoticons.com     had IPv4 had IPv6 2607:f8b0:400e:c04::79  
www.tirandosarro.com.br         had IPv4 had IPv6 2607:f8b0:400e:c04::79  
www.udg.mx                      had IPv4 had IPv6 2001:1210:105:1::a