The usual reason why someone cannot connect to the frontpage in most cases is an improper pointing of the DNS nameservers. You can make a quick check on your side, using various tools, like DNSstuff. If the check confirms that the DNS pointing is the issue, you can easily change the nameservers:
- if your domain is hosted with us, you can change the nameservers following this useful article
- if your domain is hosted elsewhere, please contact your registrar for further information and assistance
Keep in mind that all DNS changes involve a global propagation period of up to 48 hours for the changes to take full effect. You should be able to properly view your frontpage afterwards.