Not _exactly_ as easy, you also need a valid https cert, and set up a cronjob to renew it. And for some other reply here, "as easy as it was in 2003" really doesn't mean "easy" :v
Super easy with the right DNS provider and something like go-acme/Lego. Add a crom job and done. Yeah, not zero effort but compared to early Let's Encrypt with HTTP-01 and such it's quote easy.