@raucao Is that actually CalDAV?
@mjjzf CalDAV is for sync. The calendar file format is iCalendar (.ics). And yes, that's a link to an iCal file.
@raucao For subscription, right. I would have thought that would be a selling point! They have been a bit quiet on that. But I guess you do not want to send the eyeballs elsewhere...
@mjjzf Actually, also no. For merely subscribing to a calendar, you can just use a URL to any .ics file that is hosted on the Web. CalDAV is for syncing your own (or shared) calendars across devices/clients.