cottonon.com has IPv4 has IPv6 :: (time=0.000147) edu22.info has IPv4 has IPv6 ::1 (time=0.000245) hofstra.edu has IPv4 has IPv6 :: (time=0.013898) pega.com has IPv4 has IPv6 :: (time=0.000100) univ-msila.dz has IPv4 has IPv6 ::1 (time=0.000104)