Cisco Cloudapps resolution problems

Zero Trust 1.1.1.1
1

Anyone else having resolution issues trying to get to Cisco’s case site?
https://mycase.cloudapps.cisco.com/case If i switch from 1.1.1.1 and 1.0.0.1 to my ISP’s resolvers it works no problem. How do I report a resolution issue. Comcast is my ISP in Connecticut

2

Resolves fine for me

nslookup mycase.cloudapps.cisco.com 1.1.1.1
Server:  one.one.one.one
Address:  1.1.1.1

Non-authoritative answer:
Name:    mycase-cloudapps.glb-ext.cisco.com
Address:  72.163.10.124
Aliases:  mycase.cloudapps.cisco.com

Can you post the output of these six commands?

nslookup mycase.cloudapps.cisco.com 1.1.1.1
nslookup mycase.cloudapps.cisco.com 1.0.0.1
	
nslookup -type=cname mycase.cloudapps.cisco.com 1.1.1.1
nslookup -type=cname mycase.cloudapps.cisco.com 1.0.0.1

nslookup mycase-cloudapps.glb-ext.cisco.com 1.1.1.1
nslookup mycase-cloudapps.glb-ext.cisco.com 1.0.0.1
3

The domain does seem to have some configuration issues however

https://dnsviz.net/d/cloudapps.cisco.com/dnssec/

4

The issue appears to be resolved as of this morning. i can now resolve the site without using my ISP resolvers.