Recommended amount of WordPress installations on a droplet?

I run up to 7 Wordpress sites on a single 512mb droplet. The sites are all low to medium traffic.

If I know a website is going to be very busy, I give it it’s own droplet. If a site will be using woocommerce or such, I give it its own droplet

setting up a swap would help things quite a bit.

There is a tutorial somewhere on DO, and also a guy made a script that does it for you ( I just use this script when I set up a new droplet) https://github.com/CraftThatBlock/SwapUbuntu

I’m using the same setup, 15 sites all with their own WP installs on a single $5 droplet, all low traffic… I do have swap operational… Here are the instructions for swap…

sudo fallocate -l 2G /swapfile (creates 2gb swapfile)

sudo chmod 600 /swapfile (restricts permissions)

sudo mkswap /swapfile (creates swapfile directory)

sudo swapon /swapfile (turns swapfile on)

sudo sh -c 'echo "/swapfile none swap sw 0 0" >> /etc/fstab' (turns swapfile on every boot)

sudo shutdown -r now (reboots server)

Good luck :)