问题
As the title states; will google appengine remove the x.appspot.com domain if a custom one is mapped? Or will the unique x.appspot.com always work, regardless of custom domain mapping? Both in a short and long-term perspective.
回答1:
x.appspot.com will always work.
The appspot domain is really important because it allows you to directly access different versions and modules. For example, if you have only a default module and multiple versions of it, you can access the versions like this:
- v1.x.appspot.com
- v2.x.appspot.com
The default version will be at x.appspot.com.
来源：https://stackoverflow.com/questions/39996075/will-mapping-a-custom-domain-remove-the-appspot-com-domain