new hosts appearing between 2013-01-30_0800 and 2013-01-31_0800:
economia.uol.com.br             has IPv4 has IPv6 2804:49c:319:430::358 (ok) (time=0.294445)
educacao.uol.com.br             has IPv4 has IPv6 2804:49c:319:430::358 (ok) (time=0.288402)
esporte.uol.com.br              has IPv4 has IPv6 2804:49c:319:430::358 (ok) (time=0.288407)
www.appspot.com                 has IPv4 has IPv6 2607:f8b0:400e:c02::8d (ok) (time=0.020382)
www.blogspot.co.il              has IPv4 has IPv6 2607:f8b0:400e:c02::bf (ok) (time=0.020917)
www.bol.uol.com.br              has IPv4 has IPv6 2804:49c:319:430::358 (ok) (time=0.259090)
www.capsoulat.net               has IPv4 has IPv6 2607:f8b0:400e:c02::79 (ok) (time=0.020373)
www.imperial.ac.uk              has IPv4 has IPv6 2001:630:12:600:1::107 (ok) (time=0.157450)
www.lsu.edu                     has IPv4 has IPv6 2620:105:b000:8101:250:56ff:feab:4d39 (ok) (time=0.094318)
www.metromasti.com              has IPv4 has IPv6 2a01:7e00:1::b24f:af0a (ok) (time=0.168242)
www.photozone.de                has IPv4 has IPv6 2607:f8b0:400e:c02::79 (ok) (time=0.019706)
www.ruhr-uni-bochum.de          has IPv4 has IPv6 2001:638:50c:5::64:11 (ok) (time=0.175318)
www.tokyotosho.info             has IPv4 has IPv6 2001:470:27:4f7::b00b:babe (ok) (time=0.179817)
www.uolhost.com.br              has IPv4 has IPv6 2804:49c:319:430::358 (ok) (time=0.277553)
www.uspto.gov                   has IPv4 has IPv6 2610:20:5004:1606::36 (ok) (time=0.375112), 2610:20:5004:1606::54 (ok) (time=0.353681)
www.webfaction.com              has IPv4 has IPv6 2607:f0d0:1005:95::2 (ok) (time=0.042645)
zipmail.uol.com.br              has IPv4 has IPv6 2804:49c:319:430::358 (ok) (time=0.291915)

hosts disappearing between 2013-01-30_0800 and 2013-01-31_0800:
lsu.edu                         had IPv4 had IPv6 2620:105:b000:8101:250:56ff:feab:4d39  
www.barcelona-trans.com         had IPv4 had IPv6 2a03:6f00:1::5c35:7b60  
www.blogspot.pt                 had IPv4 had IPv6 2607:f8b0:400e:c02::bf  
www.blogspot.ro                 had IPv4 had IPv6 2607:f8b0:400e:c02::bf  
www.blogspot.sg                 had IPv4 had IPv6 2607:f8b0:400e:c02::bf  
www.freemmman.com               had IPv4 had IPv6 2607:f8b0:400e:c02::79  
www.httrack.com                 had IPv4 had IPv6 2a01:e0b:1:154:ca0a:a9ff:fef1:a3ed  
www.printable-coupons.blogspot.com  had IPv4 had IPv6 2001:4860:4001:802::100b  
www.tsa.gov                     had IPv4 had IPv6 2001:418:8404:7::a5fe:2aca