ecust.edu.cn has IPv4 has IPv6 ::1 (time=0.000085) edu22.info has IPv4 has IPv6 ::1 (time=0.000106) hofstra.edu has IPv4 has IPv6 :: (time=0.000090) pega.com has IPv4 has IPv6 :: (time=0.000074) univ-tlemcen.dz has IPv4 has IPv6 ::1 (time=0.000084)