We're not sure why this happens. As woofer mentions, the site itself has excellent uptime (essentially 100%) - but for some reason, Aliant frequently has trouble connecting to it.
If you're on Aliant, sometimes it will work at
www.isaintjohn.com but not isaintjohn.com (without the www)... and other times, vice versa.
But people on Rogers and other ISPs are able to connect with no problem. And even most other Aliant customers can connect... it seems to affect only a small portion of Aliant customers at a time.
Hopefully, if enough people complain to Aliant about it, they can fix the problem
We have tried asking about it, but did not have much luck.