I'd say any mention of URL should be avoided for the sake of confusion.
I can't count the number of times I've been asked by a developer running a web server on a random port to "make sure to include the port" on the A record I'm adding.
Shortly after I started using Fedora as my daily driver I was attempting to dd if=/dev/zero the MBR and partition table off a USB disk sdb and accidentally wiped the one off of sda instead.
As luck would have it, I had the output of fdisk -l /dev/sda in my terminal scrollback buffer and was able to recreate the partition table with no damage done.
I can't count the number of times I've been asked by a developer running a web server on a random port to "make sure to include the port" on the A record I'm adding.