The free version of cloudflare lets you keep secret the IP address of your VPS. It also mitigates the cost of high prices for bandwidth if you use services like

The free version of cloudflare lets you keep secret the IP address of your VPS. It also mitigates the cost of high prices for bandwidth if you use services like AWS/GCP/netlify. You're less likely to go offline if your website is unexpected popular on a random day.