You can also use Caddy to do this. Single static binary, use the "respond" command to spin up a super simple server that responds with the text and headers you

You can also use Caddy to do this. Single static binary, use the "respond" command to spin up a super simple server that responds with the text and headers you want: https://caddyserver.com/docs/command-line#caddy-respond https://caddyserver.com/docs/command-line#caddy-respond also gives you Automatic HTTPS out of the box, production ready proxy, etc.