Sometimes due to DNS resolving issue the site gets inaccessible from a particular point or ip address. This problem is normally temporary and it get resolves as soon as the internet servers are updated globally.
How to Fix:
A quick solution to this is to add Touch VPN on your google chrome. CLICK HERE to install.
When it is insalled you will see an icon like in the picture below.
Click this and then click Connect.
After that this icon will become Green.
Now you can start browsing.