In Microsoft Windows: In Microsoft Windows, you can use the command ipconfig /flushdns to flush the DNS resolver cache.
– Start -> Run -> type cmd – In command prompt, type C:>ipconfig /flushdns
In Mac OSX: In Mac OSX, you can use the command lookupd -flushcache to flush the DNS resolver cache. bash-2.05a$ lookupd -flushcache In Max OS X 10.5, please use this command on terminal to flush dns cache: dscacheutil -flushcache
In Linux: In Linux, the nscd daemon manages the DNS cache.To flush the DNS cache, restart the nscd daemon. To restart the nscd daemon, use the command `/etc/rc.d/init.d/nscd restart`. Also please request your ISP to clear their DNS cache too so that the new DNS information propagates at your end.
If the problem persists please check from some of the proxy browser like www.anonymouse.org