Comcast not allowing access to websites

Hi, 

 

We are having issues with accessing websites based on the comcast network. We have done tracing and testing and we have changed the DNS setting to 8.8.8.8 and it works fine. If we use Comcast, it pings back no IP which then shows domain not accessible on Comcast Network.

 

dig @dns101.comcast.net www.doorage.com should return an IP but doesn't

but dig @8.8.8.8  www.doorage.com does return the correct IP

 

Domain Information is Doorage.com 

Another domain having similar issues is Local17Insulators.com 

 

We have troubleshooted all day, and it's a Comcast issue for sure. We have 3 IT engineers on this, and we are running out of options here.