We see occasional frustration, in Blogger Help Forum: Get Help with an Issue , involving broken or unreliable custom domains. I setup the Custom Domain properly, following the Google directions . For some of my readers, my custom domain is not opening. I can see it is going in an infinite loop in the browser - and after a long time, it's throwing errors. My domain is setup, properly. Why do I have to deal with this? And we will investigate - and in many cases, we find the domain is setup properly .
What Blogger won't tell you