There is no hard and fast rule as to what is to be shown by ISP when any site is blocked. It can be a blank white page or some particular error message or time out.this is what happens when a site gets blocked by ISP.
Rather than jumping to conclusions(thinking ISP or GOI is doing it) based on what other people are saying on some forums, investigate yourself to find out what is causing the error. Mostly this error is generated by IIS.BTW I get 403 to random sites sometimes
The web server of this website is sending response HTTP/1.1 302 Object moved redirecting the browser to http://google.com. This is not our ISP or GOI created problem. Rather the web server(Microsoft-IIS/7.5) has been configured to respond in this manner to specific range of IP addresses. If you browse with IP of this website 75.125.240.178 the same web server redirects it to WapKing.BTW what happens when you access http://wkchat.com
If you are interested to see the http communication between your browser and web server install any http analyzer. I have Firefox and I have installed HttpFox to see the http communication.
I am in the same IP range.I'm on 117.XXX.XXX.XXX IP range. What about you?