When you are getting such an issue, then you might feel that my website is down, but it is live for others in fact. In this post, i have discussed few points which will help you solve this problem.
If the issue is still there and looking for it to resolve, then follow the steps
Step 1 : Login to your router admin panel
Now login to router admin panel will be different for every router,but login url will be given under the router. Generally starting with http://192.168.x.x then login with the username and password. This is also given under the same location where you can find the login url.
Step 2 : Go to network settings
Network settings tab will be located in left side bar for iball users, and for others mostly it is on left side bar, after that go to wan settings.
Step 3 : then change the DNS server
put 18.104.22.168 in both the fields and you will be getting your website live up and running, which was once down for you.