Well first of all I borrowed that definition so it's not exactly mine.
I don't think I can define how I do aftercare because it's never the same. Mostly it's just being there for your submissive in whatever way they need right now. That may mean holding them while they cry or it may mean talking for a time afterwords or....really it just depends on what was involved and how the submissive took it.
I will say that aftercare is harder online than in person. Submissives are a stubborn group all in all (no offense meant) and many don't want to burden a dom with their pain. In r/l that's easy to spot and can be handled. In an online environment it's a lot harder so as a dom I constantly ask questions after a scene. I've been fooled a couple of times into thinking everything was fine only to find out later that it wasn't.
So talk to your submissives and make it clear that honesty is the most important part of all of this.
(I sound like a public service announcement. lol )