I have noticed that Google blogger blogs are not accessible with SLTnet if they are configured to use custom domain. For example, http://blog.shaakunthala.com is not accessible with SLTnet at the moment.
This is not due to a misconfiguration of DNS, but a technical failure of SLTnet.
By default, http://ghs.google.com:80 should provide a ‘Not Found’ page. But with SLTnet connections, you’ll see a browser error like, ‘Unable to Connect’. This is the issue.
I have already informed SLTnet about this issue and waiting for their reply, and I’m writing this small note for bloggers, by the meantime do not mess up your DNS configuration.