Comment by ceejayoz
10 hours ago
Is there any reason to believe captive.apple.com is any less "designed to be highly available" than time.windows.com?
It's a static page that every Apple device relies on saying only:
<HTML><HEAD><TITLE>Success</TITLE></HEAD><BODY>Success</BODY></HTML>
The only risk is that Apple hasn't announced it as being reliable or promised to keep it up or the format the same in any way. They could 100% pull it out from under everyone, with modifications in their OSes prepared for the change
Also some captive portals fake/emulate responses from this service.