Cloudflare Tunnels (cloudflared) is a free service provided through Cloudflare that can establish a connection (or a direct tunnel) from within your local network to Cloudflare (and thus the public web) It’s a convenient and secure way to set up a bridge between a local server and a public facing domain without a bunch of config or coding, and its a much safer and easier-to-maintain alternative to opening a port on your router.