Custom DNS Configuration (GoDaddy) on mobile browser

I have my DNS CNAME and had it configured on my www in Godaddy account.

I can seem to load this to my Laptop browser and my iPhone mobile browser but I'm having a 502 bad gateway when using my Android mobile browser.

Have I missed any configuration for mobile views? I'm kind a getting stuck here.

Are you sure the 502 is coming from PythonAnywhere and not from (for example) aproxy in the mobile network that is between your mobile and PythonAnywhere.