Caddyfile Quick-start

Create a new text file named Caddyfile (no extension).

The first thing to type in a Caddyfile is your site's address:


Then hit enter and type what you want it to do, so it looks like this:


respond "Hello, world!"

Save this and run Caddy from the same folder that contains your Caddyfile:

caddy start

You will probably be asked for your password, because Caddy serves all sites -- even local ones -- over HTTPS by default. (The password prompt should only happen the first time!)

If you get permission errors, you may need to run with elevated privileges.

Either open your browser to localhost or curl it:

curl https://localhost
Hello, world!

You can define multiple sites in a Caddyfile by wrapping them in curly braces { }. Change your Caddyfile to be:

localhost {
	respond "Hello, world!"

localhost:2016 {
	respond "Goodbye, world!"

You can give Caddy the updated configuration two ways, either with the API directly:

curl localhost:2019/load \
	-X POST \
	-H "Content-Type: text/caddyfile" \
	--data-binary @Caddyfile

or with the reload command, which does the same API request for you:

caddy reload

Try out your new "goodbye" endpoint in your browser or with curl to make sure it works:

curl https://localhost:2016
Goodbye, world!

When you are done with Caddy, make sure to stop it:

caddy stop

Further reading