I've had sites go down on me well before I found RPG. So, I got into the habit of copying all my rps into Word. And writing my posts there as well so there's less chance I'll lose them if the internet decides to be a butt or my computer suddenly crashes. It is also conveniently equipped with spellcheck. 

But since guildfall, I've simply added on the precaution of asking my partners if they'd be willing to share contact info with me, and have my own rp exclusive email, as well as discord and skype, so we can pick up where things left off if the worst comes to pass. But I'm not overly concerned about it, otherwise.