This is not meant to be another bump (thank you for your last response) I just thought that some things I found while looking into some server logs might possibly be useful.
The user agent for those AWS compute hits is listed as “python-requests/2.18.4”
The status of the request is always 304.
The method is always HEAD.
I’m not sure if any of that will actually be of any use to you, but it was some new information I just found.