Wait, since when could hostnames have underscores?

EDIT: Hey, IDNs seem to work! http://café.jpg.to/

EDIT 2: Or maybe not. http://schlüssel.jpg.to/

(Schlüssel means "key" in German. Google Image Search it and you get pictures of keys. Search for "Schlussel", though, and you get that girl. So presumably it searched for the punycode, something like --schlussel-blah.)

EDIT 3: Wait. the IDN for "Schlüssel" is xn--schlssel-95a. If I Google that, I don't get pictures of Ms. Schlussel. It must be decoding it and stripping the accents? That said, searching for schlssel does yield pictures of her.

EDIT 4: café is --xn-caf-dma. Google Image Search "caf" won't find cafés. Nor will "--xn-caf-dma". So it must understand IDNs but strip or be accent-insensitive

They always could have underscore. But beware of browser issues (cookies will fail in IE - at least pre 9 versions, for example).

Well, thing is hostnames are supposed to only contain letters, digits and hyphens, although other DNS names can contain underscores. So it shouldn't work. You should be able to have a TEXT record with an underscore, but really shouldn't be able to have an A or AAAA record.

In this case optimus_prime is a sub domain. The actual DNS entry is likely *.jpg.to so DNS does not have to know how to resolve the URI section with underscore.

I'm not sure wildcard entries are actually a feature of DNS, I thought they were something done server-side by the DNS server.

It seems to be turning out better results, though.

http://facebook.jpg.to/ -> http://mebe.co/facebook.jpg

http://rock.jpg.to/ -> http://mebe.co/rock.jpg

Arrrh... http://facebook.jpg.to/

Ah this one actually works. Thanks. I just wasted a good hour placing the nicks of every one in the irc channel I frequent into jpg.to. Hilarity ensued. Productivity diminished.

http://placenoun.com/ too

And http://lorempixel.com/

Whoa this is cool!

heh, never heard of that til now. Sweet!