If you see this page, it works.

root@bigbubble:/mnt/nfs/data/redirect/caddy-redirect/srv# ll total 12 drwxr-xr-x 2 root root 4096 set 12 2022 ./ drwxr-xr-x 5 root root 4096 jun 7 2019 ../ -rw-rw-r-- 1 root root 240 set 12 2022 index.html root@bigbubble:/mnt/nfs/data/redirect/caddy-redirect/srv# cat index.html Caddy

If you see this page, it works.