Little known trick--or perhaps everyone knows it and is quietly laughing behind my back--with Chromium browsers and Firefox (and maybe Safari, I'm not sure), you can add a slash to the end of an address and it will bypass the search.
So, for example, my router on the LAN goes by the hostname "pfsense". I can then type pfsense.lan/ into my address bar and it will bring me to the web UI, no HTTP/s needed.