[LeoPanthera]

Safari on macOS will not load this address. It does resolve, weirdly, "host" in the Terminal works and I can see Safari's requests being answered by my home DNS server in the logs.

But Safari just throws an error: Can't connect to the server "ai".

Update: It works if you include a trailing dot: http://ai.

Update 2: HN's URL parser does not include the dot in the hyperlink. Frustrating.

[5ESS]

http://ai. Works in safari for iOS, shockingly.

[LeoPanthera]

Huh. It does not work on my iPhone. Same error. I wonder what the difference is.

[petee]

The link didn't include it, but try again with the trailing '.' period

[LeoPanthera]

Aha, yes, this works.

[selcuka]

Weird. `dig` on macOS does not resolve it but `host` does.

[LeoPanthera]

That's interesting. dig works for me.

I suspect all these difference depend on what DNS server you are using.