What’s the Best Way to Host Multiple Client Websites?

Running all 50 sites on a single server isn’t the best idea, but having separate droplets for each would mean a lot of management. A better option is to spread them across a few VPS instances, allowing 10-15 sites per instance. This way, you’re not managing 50 servers but also not risking everything on one server.

It really depends on your traffic. I use Plesk for some servers and host around 200 domains per server. Each server has about 16 GB of RAM and SSDs. Plesk isn’t my favorite, but it works fine for managing PHP versions and client emails. If you can keep the traffic in check, this setup should work for you.

Security is a huge issue when everything is on the same server. If one site gets compromised, it puts all the others at risk. Consider separating them further, maybe using AWS Lambda functions or even different AWS accounts for each client. You can use scripting tools like Terraform to automate deployments, which would save you a lot of hassle.

I recommend having a backup server that you can switch to quickly. Keeping things in sync using tools like MySQL replication and rsync will help. This way, if something goes wrong, you’re ready to go without too much downtime.

In my agency, we use a VPS with WHM/cPanel to host about 150 sites. This setup is solid if you're comfortable with it. You can always scale your server's resources if needed. Just remember, traffic is key; one of our sites gets more visits than all the others combined, so we have it on a dedicated server. So long as your backups are reliable, I'd stick with your current arrangement instead of switching to something like AWS or droplets, which can get messy.