[thedufer]

Putting a slash '/' at the end consistently gets you there, at least in Chromium-based browsers. We use this a lot at work (via DNS search suffixes, not private TLDs).

[Biganon]

The "correct" way would be to add a dot at the end

[thedufer]

Why would that be more correct? A trailing dot indicates that a domain is fully-qualified, but that's not the issue here. The browser is trying to decide whether your query is a search string or a URL.

Also, a trailing dot would indicate the opposite of what we want - we're using single-label domains that only work if we can rely on search suffixes to qualify them.

[tuckerman]

At least in chrome the final period doesn't seem skip search, so I guess you want tld./ (or foo/ if you want to use your search domain)