Steps to take after creating One-Click Install WordPress on Ubuntu 14.04?
I run Savageminds.org, an anthropology blog which gets over 50k page views per month (about 2k per day). I'm thinking of moving it to DigitalOcean and created a copy of my site using the One-Click Install WordPress on Ubuntu 14.04 instructions. I picked the most basic droplet, at $5 a month for 512MB of RAM. Worried that this might not be enough (we run a fair number of plugins) I also enabled swap following the instructions here. I also use Hyper Cache to cache my webpages (along with some other optimization plugins). (And I use updraft plus for backups.)
So, my question is. Will this setup be enough that I can sleep at night knowing my site won't go down? Do I need to pay for a larger droplet? Or do I need to install additional software to optimize and/or secure my system? This is the first time I've tried using a VPS. I've used shard hosting for the past decade, so I know my way around wordpress and the command line a bit, but I would appreciate any tips or advice more experienced DigitalOcean users might have.